Solving a quadratic by completing the square

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👉 Learn how to solve quadratic equations by completing the square. When solving a quadratic equation by completing the square, we first take the constant term to the other side of the equation and create a perfect square trinomial with the quadratic term and the linear term.
Timestamps:
0:00 Intro
0:43 Start of the Problem
1:02 Find the Value C
1:53 Simplify
2:50 Solve
3:24 Answer
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Organized Videos:
✅How to Solve a Quadratic by Completing the Square
• How to Solve a Quadrat...
✅Solve a Quadratic by Completing the Square | Fractions
• Solve a Quadratic by C...
✅Solve a Quadratic by Completing the Square | -x^2+bx+c
• Solve a Quadratic by C...
✅Solve a Quadratic by Completing the Square | 2x^2+bx+c
• Solve a Quadratic by C...
✅Solve a Quadratic by Completing the Square | ax^2+bx+c
• Solve a Quadratic by C...
✅Solve a Quadratic by Completing the Square | x^2+bx+c
• Solve a Quadratic by C...
✅Solve a Quadratic by Completing the Square | Learn About
• Solve a Quadratic by C...
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👨‍👩‍👧‍👧 About Me: I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those experiences to help students improve in math through practical applications and tips. Find more here: www.freemathvideos.com/about-me/
#Solvequadratics #completethesquare #brianmclogan

Опубликовано:

14 июл 2024

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Комментарии : 1 тыс.

@brianmclogan 4 месяца назад

Quick Guide to Completing the Square - ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-MveZ6dyKMuA.html

@hiroshih9157 4 года назад

It's so much easier being able to pause the teacher without having to socially interact

@kokorobanks3341 4 года назад

Nvrmnd online school must be a blessing for you!

@forest7013 4 года назад

Are you an introvert?

@hiroshih9157 4 года назад

@@forest7013 No, my math teacher is just very unapproachable. she's scary.

@Undeadkilla-mu3jf 4 года назад

Aero that’s gg

@louoiemarno9197 3 года назад

@@hiroshih9157 is Dianne Requiza your teacher??

@corbinwaller6383 3 года назад

Anybody else have a test tomorrow and trying to learn it

@gunnarsokol9749 3 года назад

Yeah me

@jotarokujo4250 3 года назад

Me boi

@energizedmagazine762 3 года назад

Right here 💀

@blacknolr1200 3 года назад

yeah me next sunday ):

@AlexMartinez-yp8hj 3 года назад

I have a test later today 😂😂

@ministryundertaker6662 5 лет назад

This professor is the best. He actually explains what he is doing when in the process of an action and doesn't just get angry and yell when you don't know the answer, like all the other math teachers in school. Love this! He really breaks the deadlock. :)

@mmik9683 5 лет назад

he's really good about going back and explaining when a student needs a refresher on a step.

@crusader3400 4 года назад

IKR teachers are like "DONT YOU KNOW THIS" and I'm like "well obviously...... I dont"

@Abc-xm8pb 2 года назад

@@crusader3400 omg I explain this to everyone instead of teaching they ask questions and ask us for the answers as if we know???

@cocothompson8257 2 года назад

My teacher wouldn't talk to me about making up a quiz I missed, he walked away from while I tried to talk to him. So I left to go to my next class. I never made up that quiz, I got pissed. I know I shouldn't hold a grudge, but he gets mad at me when I ask questions now. Every time I ask for help with a question, he just fixes it for me instead of letting me go back and trying to solve it myself. He makes me feel like shit. He once made me cry because I didn't finish a test. He doesn't believe I have ADHD just because my parents won't have go to the school to say I officially have it. Long story short, math class is a living hell. These videos are keeping me going. God bless Brian McLogan because I'd be lost without these videos.

@surya.kasibhatla 9 месяцев назад

@@cocothompson8257 this is so bad. but u got this!

@bruhbleach 5 лет назад

The day before a test and this honestly just helped me a lot. Thanks

@peacesantisuk4278 4 года назад

Tmr is my test day lol

@ayaanbhatkar8648 4 года назад

I watched this on my test day an hour before

@Rokia2003 4 года назад

@@peacesantisuk4278 same

@crusader3400 4 года назад

Doin that rn

@enochli4612 4 года назад

The lesson before the test and this honestly just helped me a lot. Thanks.

@celestebarbosa1 5 лет назад

You're a good teacher. Your videos have helped me tremendously, I'm truly grateful. I honestly wish you were my professor. Keep doing what you're doing.

@brianmclogan 5 лет назад

thank you very much will do

@alaynac1610 3 года назад

cool

@sawadrollyc.2712 3 года назад

@@brianmclogan That stache Though

@google4204 3 года назад

@@brianmclogan please explain this to me but with a bit more english mixed in there I have a problem for you “What is the intermediate step in the form (x+a)^2=b as a result of completing the following equation? -2x^2 + 8x + 73 = 9 bit tired of just cheating and barely getting by cause math keeps getting harder and harder

@An0r1 3 года назад

@@google4204 the last time the dude replied was 2 years ago

@gb_angel-yt7639 4 года назад

Who tf invented math 🤦‍♂️

@theaverageclownhole3369 4 года назад

Math is the reason we have RU-vid, video games and a whole lot of other things

@gb_angel-yt7639 4 года назад

The real Scorpion idc, I rather be bored than being frustrated over my math hw...

@mryup6100 4 года назад

@@gb_angel-yt7639 Bro you just can't do math like that. Math is very very important like @The real Scorpion mentioned.

@mryup6100 4 года назад

@@gb_angel-yt7639 slader is good for more difficult problems. People post the steps to do the problems to several textbooks.

@squidguy7907 4 года назад

The real Scorpion you need to pay $3 a month to get the explanation on how to do it. It’s BS

@BrianAllen_33 4 года назад

It’s sad I hear CHILDREN in the background, meanwhile, my grown as Is confused af counting my fingers backwards😂😂😂

@pixelfish3395 3 года назад

Bruh it’s fine, this is difficult

@mythic7875 3 года назад

Dw, we children having trouble too X((((

@markymarquez9225 4 года назад

You taught me more in this one video than my professor has taught me all semester.

@ryderstaplins6146 3 года назад

Bro you were learning this in college.If so why in the fuck am I learning this in high school?

@google4204 3 года назад

@@ryderstaplins6146 why am I learning this in middle school????

@kendall9986 3 года назад

same 😳

@KanyewestbiggestfansBiggestfan 2 года назад

@@google4204 fr 💀

@maximillanmoseskawotjo3385 Год назад

@@google4204 yes me tooo

@crispytim2805 4 года назад

In school teacher takes 1hr for you to learn this will this guy taught me in 4mins

@b.h.40594 3 года назад

thats because the educational system thinks it takes you one hour to learn very basic stuff

@brianmclogan 2 года назад

If this video or many others was helpful, please consider letting me know with a "Super Thanks" above ⬆. I am able to read and respond to all my messages and thank you so much for your support

@KurtDeposoy 2 года назад

YOU THE BEST TEACHER

@sirplsputyergunaway573 2 года назад

Hi! Great video. Unfortunately, I’m a little slow, how did you get 17?

@zombiebot-qp6mw 2 года назад

@@sirplsputyergunaway573 because the equation equaled 13 and he added 4 to both sides 13 + 4 equals 17

@shadow11296 2 года назад

Thank you. You are a lot better than my teacher. I am currently at a 69 on the second to last week of school and this should bring my grade up.

@KurtDeposoy 2 года назад

@@shadow11296 yoooo nice

@evansappiah2547 4 года назад

Yo you blessing my grades right now appreciate dawg frfr

@francismcgurk4200 3 года назад

Evans Appiah cringe

@evansappiah2547 3 года назад

Francis McGurk it’s cringe you felt the need to reply to this comment 😂😂😂 10 months after the fact

@Zelly2001 3 года назад

@@francismcgurk4200 how’s that cringe? You pressed or sum?

@jotarokujo4250 3 года назад

@@francismcgurk4200 wtf man

@jotarokujo4250 3 года назад

@@francismcgurk4200 he showing his thanks

@ARIGHETTI 4 года назад

Who is here before the finals tomorrow?

@chunkycuhm1253 4 года назад

@benhawk4214 4 года назад

It's 5 am yep

@tungusbadungusdepardeux4757 4 года назад

You betcha

@myaarhijaz3105 4 года назад

@henrysheffield3998 4 года назад

Baby Yoda

@chancheese7410 3 года назад

I'm a third-year electrical engineering student who also is about to finish his computer science minor and math minor in a few months, completing the square always trips me up. I have to rewatch it every once in a while and this guy in 4 mins explained it better than all profs and teachers in the last 7 years of learning this.

@HazyEmpathy 2 года назад

Math teachers were always like “you won’t be walking around with a calculator” but actual engineers are relearning whole math lessons at the touch of a button😂

@yoboicdubs397 4 года назад

To this day you’ve helped me pass my class. I’m extremely appreciative towards your teaching method and how you make it interesting. Thank you and keep up what your doing 💯

@mendaciousz1448 5 лет назад

what an easy explanation, thank you so much i needed so much help understanding this

@jeromeperson440 5 лет назад

Love the stache

@danielvides9985 3 года назад

Currently in Calc II and needed this for integrating rational functions by partial fractions!!! It's amazing how one thing you learn in middle school comes back to haunt you in college. Thanks for the time you put into these videos, much appreciated!!!!

@marcohabil2407 Год назад

Lol same

@CeezaMProductions Год назад

Here for calc II as well lmao

@dim4757 3 года назад

I've watched several of your tutorial videos before. I'm never disappointed. You say everything clear and upfront, no beating around the bush. Thank you very much for doing this for those of us who's teachers aren't as good at explaining things

@mikec6111 2 года назад

Working through this with my daughter for school. Man I wish RU-vid was around when I was a kid. If one teacher doesn’t make sense, you try another. Yours was the one that got it to click for me so I could talk it through with her. For fun, I tried this method on the basic ax^2 + bx + c = 0 leaving in the a, b, and c c as the coefficients instead of numbers. Holy cow! That’s where the Quadratic Formula comes from!

@mahisafayat2852 2 года назад

It’s so amazing to just have someone talk it out and explain to you other than just following instructions from a book (which I don’t get 90% of the times -.-)

@mohamadshanti6758 3 года назад

2:00 how did it go from x^2-4x+4 to (x-2)^2?

@saisha9266 3 года назад

when you do (x-2)^2 you do (x-2)(x-2) which is (x^2-4x+4)

@indiel2433 3 года назад

You use the foil method to get from (x-2)^2 or (x-2)(x-2), which are the same, to get to x^2-4x+4

@xaviernicholls9816 Год назад

This was perfect! I spent 30 minutes looking at the notes to do my homework for 2 of these problems. I wish I would have found this channel sooner.

@brianmclogan Год назад

🙌🙌🙌

@KianaMousavi-ep6dm Год назад

I am self studying for FM and I don't know what I would do without your videos, Can I just say I love them?!

@danikatait5613 Год назад

omg thanks to you im getting an A for math. I do online gcse and dont have a teacher (i just watch videos of people explaining, which most of the time makes 0 sense) and your videos makes math so easy!!! Sending thanks all the way from south africa

@lawlboi9540 3 года назад

Your students are lucky to have a teacher like you

@itsme6591 4 года назад

He’s so awesome! Thank you. Side note: Mr. McLogan, you must have quite an extensive wardrobe because I’ve never seen you in the same shirt twice. :)

@Apersonwithmuscles 2 года назад

i just gotta say...thanks...almost 10 years later and you're still helping students like me make A's ;-; :)

@brianmclogan 2 года назад

👊👍👍

@alexandraharper3799 4 года назад

Thank you for explaining this in a manner that makes it so easy to understand. It helped a lot when my professor left me beyond confused by not actually explaining why she was doing what she was doing.

@jacobrhodes9390 3 года назад

That moment where an engineer (me) comes back to watch this video because I low key forgot how to complete a square.

@rachelamruthaluri8447 5 лет назад

Amazing teacher! Thankyou so much for this lesson. Saved me from struggling.

@thisisgarrett3819 3 года назад

My work is due tonight and here I am trying to learn how to do it

@juniorgoran9940 3 года назад

Hopefully u succed

@williamflanagin6846 4 года назад

I wish now that I remembered the entire step by step process of completing the square when it came to quadratic equations...........it seems so easy the way you did it Brian. Thank you.

@cameronjackson4117 3 года назад

These videos are literally perfect. I have a test tomorrow and just needed a quick review on this before I go to bed and this gave me exactly what I needed.

@rorysnow7937 2 года назад

How was your test? If you remember

@Andrew-xe7sp 4 года назад

You lost me when you went from (x2-4x+4)=13+4 to (x+2)=17. I understood everything before that, and after that, but that par still has me confused.

@trysten6277 4 года назад

Factored it

@straightouttagaming3110 4 года назад

@Anonymous User yeah im still confused I've been searching through videos trying to find a explanation for this and nothing is helping the factoring part is hard too cause im not good with times tables😬

@straightouttagaming3110 4 года назад

@Anonymous User well i am good at multiplication but there just not memorized its takes time for me to find it

@georgebroome7179 4 года назад

@Anonymous User Thanks this makes a lot more sense now.

@okey2884 4 года назад

Same

@jungle5663 3 года назад

Your instruction has been, and will continue to be extremely helpful over the course of my math journey. Thank you.

@reganbooker788 3 года назад

Thank you so much for making these videos! They have helped me so much and you explain it so well. My math teacher is so confusing and makes things unnecessarily complicated. Thanks again!

@sammerghafoor6877 3 года назад

I'm sorry for saying this but his pfp looks like Johnny Sins

@flip-antonio8425 5 лет назад

Dude u have saved me thank you so much god bless your soul

@backwithbryson3697 4 года назад

thank you for helping me learning this unit. I had a hard time in class with this and you made it ALL make sence. thank you for what you do and may God bess your life,

@QusayyJhuboo 3 года назад

Wish I had a teacher like this

@LABoh122 8 лет назад

I'm going into precalc and I needed a refresher thanks

@brianmclogan 8 лет назад

you are very welcome! I am teaching Pre-Calc this year so look out for new videos

@Lmaosmd 5 лет назад

Good looking for the explanation, I got a algebra rengent today pray for me 😂

@AbsoluteWarlord1 5 лет назад

NY I see....well I'm guessing you finished so how did you do?

@Lmaosmd 5 лет назад

Eyy Boss bro it valid tbh 😭😭 some questions had me tight tho 🤷🏽‍♂️🤦🏽‍♂️

@AbsoluteWarlord1 5 лет назад

@@Lmaosmd well hopping you passed bro!

@imovedtoanotherplaceuwu9355 4 года назад

@@Lmaosmd did u passed

@Lmaosmd 4 года назад

Olivia Pope yea lmao thanks to this mans 💯💯

@alexandrianova6298 2 года назад

Very to the point and organized. Thanks for the excellence!

@jules877 2 года назад

Honestly just watching this helped me understand way better than learning it for a week straight in class. Im in 7th grade algebra and have a big pre-test tomorrow. This just made it way easier for me, thank you so much.

@lance1350 5 лет назад

Ahh I wish you were my math teacher that would be awsome 😀

@gabriely4855 3 года назад

2:56 How did you get 2? Did you simplify 4?

@lemonlime7077 3 года назад

you factor it

@complextwitter653 2 года назад

You teach it better AND faster than my college profesional! THANK YOU!

@that.1.pelican.from.nem089 4 года назад

I love your description. It’s very helpful!

@steelspeedy4513 3 года назад

so literally no one in that class asked how he got (x - 2)^2 = 17

@antoniaborrero8160 3 года назад

that's what i was thinking like how tf we get here

@ShivamPatel-cy6ib 3 года назад

They probs smart

@strwbrrysanhwa3060 4 года назад

Omg I've gone all semester without knowing how to complete the square and you just saved my live 😭🙏🏼

@saladking2370 3 года назад

Coming back to this in Calculus. I haven't done this in years

@expansivegymnast1020 3 года назад

This dude gets you what you need in four minutes. LEGEND.

@peiod2155 5 лет назад

How did he get (x-2)^2 if the coefficient is -4x????

@eriktalamantes817 4 года назад

this is a month late but 2 squared is 4 and it’s a subtraction sign so it’s negative. the x is the variable so it goes after the 4. so it’s -4x

@aaronyoghurt5375 5 лет назад

Damn u look like Jason Kidd

@agentagrapeseedlingj5647 2 года назад

Thank youuuu! Teachers like you on RU-vid are real heroes

@shelbyholton5537 2 года назад

the way that he tought it so simply and clear just amazes me considering i found this so complicated when my teacher tought me this

@AlexYiutu-_- Год назад

I have my test in 10 minutes so I’m learning this 😭

@dovidsilbert Год назад

Hope you did good

@AlexYiutu-_- Год назад

@@dovidsilbert I did 🫂

@dovidsilbert Год назад

@@AlexYiutu-_- great hopefully I’ll do good too. I got algebra 1 regents coming up in a few weeks

@kidd-troubleeyt8424 4 года назад

Where did the 4 go

@fierylilbow7176 3 года назад

Thank you so much Mr. Brian! Helped me for my math competition !

@emmanemz5824 Год назад

I would be so happy if this guy was my teacher, my algebra professor makes it seem so much harder than it actually is! ugh youtubing my way to the finish line

@gnarcoticgang8538 5 лет назад

My teacher said you divide by 2 but you didn’t 4 divided by 2 is 2

@shekhardevadiga7524 5 лет назад

There is a square there

@mattmiller7832 5 лет назад

Yes, you're correct. You first divide it by 2 which in this video (-4/2)=-2. Then you have to square that number which is 4. -2^2=4 because a negative multiplied by a negative is equal to a positive.

@rowdydodd9268 3 года назад

Who else is here right before an algebra test

@tori322 2 года назад

You’re so good at teaching, I have an alg 2 exam tomorrow and was having a hard time understanding my teacher but your cleared stuff up so thank you!

@alondrarodriguez6581 Год назад

currently a pre-med student taking calculus after years of not doing math and oh my god this helped SO MUCH THANK YOU !

@elivandrisse Год назад

good luck

@tylerwilliams9034 4 года назад

nah i give up

@shadowelite5137 2 года назад

Thank you so much! This helped me a lot! This kinda saved my butt for a final so I thank you so very much!!

@rohanchung2185 2 года назад

Very clear lecturing. Thank you.

@yuan1630 3 года назад

You're an amazing teacher. This makes so much more sense

@samantha545 2 года назад

this man literally saves my life 😩🙏🏻

@kal.amansi1825 3 года назад

This guy is literally my hero i cant even lie

@angeldambaan1619 3 года назад

Thank you for explaining the process very well, it helps a lot😊

@celestejanellecarrillo8821 2 года назад

Thank you, this was very helpful! Also I love your channel guidelines! 😻

@jackkd3582 4 года назад

Thank you Mr. McLogan

@ahmedabdulsalam2377 2 года назад

I couldn't find a teacher such as you in Math exactly in RU-vid . No no no you are a wonderful teacher

@Ivanmosley3 Год назад

Thank you, this was very helpful.

@JamesBrodski 3 года назад

Very cool! Thanks for sharing. This was very helpful.

@numchuks1153 4 года назад

So i am studying for y math finals tomorrow, and lemme tell ya I i actually learned something, now I know what to do 💪🙏🏼

@rheamaikamesias4536 3 года назад

i am really grateful. it helped me in my modular classes because i can't understand my module huhu thank youuuu sir.

@aleaiactaest6503 2 года назад

Helpful as always Brian!

@rubinahussain7170 2 года назад

Thank u so much. The struggles are real and having videos like these help us from getting stuck.

@hopedubitz9670 5 лет назад

Thank you, I didn't understand it until I watched this video! To bad I don't have you as a teacher.!

@dootguy2238 4 года назад

Cool, thanks. Missed this part of class over at my school.

@zokermassv5193 2 года назад

ALL the love in the world for this man

@user-bg2nd7im8q 4 месяца назад

this actually helped me so much, thank you 🙏

@keiartzmarie8276 Год назад

I finally found the video i needed the most !!!! Thank you ! This had been a headaches of mine for weeks ! I'm sure I'm not gonna fail my exams next week thank you sir