1 over 2 the negative 2 power =? A BASIC Math problem MANY will get WRONG!

Подписаться 634 тыс.

Просмотров 33 тыс.

50% 1

Simplify a fraction with a negative exponent - algebra rules for powers and exponents.
TabletClass Math Academy - TCMathAcademy.com/
Help with Middle and High School Math
Test Prep for High School Math, College Math, Teacher Certification Math and More!
Popular Math Courses:
Math Foundations
tabletclass-academy.teachable...
Math Skills Rebuilder Course:
tabletclass-academy.teachable...
Pre-Algebra
tabletclass-academy.teachable...
Algebra
tabletclass-academy.teachable...
Geometry
tabletclass-academy.teachable...
Algebra 2
tabletclass-academy.teachable...
Pre-Calculus
tabletclass-academy.teachable...
If you’re looking for a math course for any of the following, check out my full Course Catalog at: TCMathAcademy.com/courses/
• MIDDLE & HIGH SCHOOL MATH
• HOMESCHOOL MATH
• COLLEGE MATH
• TEST PREP MATH
• TEACHER CERTIFICATION TEST MATH

Опубликовано:

24 фев 2024

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 119

@markashlock9017 4 месяца назад

As someone who has stunk at math all his life, you make this so interesting and understandable. Thanks!!!

@keithweiss229 4 месяца назад

I am a 60 year old math nerd with a High Schooler. Both of us have been watching your videos to keep our math skills sharp. Thanks for doing what you do!

@susanm1109 4 месяца назад

4. The 2^-2 is the equivalent of 1/4. 1 divided by 1/4 is 4.

@williamstokes2287 3 месяца назад

@jebbiekanfer8843 4 месяца назад

Believe it or not I did very well in math in HS and college. I got very high SAT and ACT scores it’s been over forty years. I’m an idiot now

@jacquelinea.7575 4 месяца назад

That is funny… i was the worst math student when i was young, now at 62, i understand practically everything someone explains.

@jacquelinea.7575 4 месяца назад

For this exercise, i got the right result mentally even though i solved it a little differently. I remembered the rule about negative and positive… but i wasn’t sure how to apply it. So i applied my own way… maybe is wrong what i did, but i got 4 as a result.

@baileysis5056 4 месяца назад

I wouldn’t say that, you went to college lol

@syedali9914 4 месяца назад

Hi Jebbie Kanfer 8843 Just like other parts of the body, your mental ability changes over time. That is because the neurons in the brain either improve or degenerate as you grow older. That is all there is to it. There's nothing to worry about. Accept things as they happen.

@madz48261 4 месяца назад

I can relate. However don't beat yourself up. Remember if you don't use it, you lose it.

@joanneyoung1081 4 месяца назад

Nicely done. Thank you. A refresher

@uni-byte 4 месяца назад

An intuitive approach ... Negative powers of positive numbers are not negative numbers. They are, in all cases, positive numbers less than 1. Therefore the the answer must be a positive number greater than 1. The only choice is 4. I'd recommend learning the right way to do this though.

@larrnew 4 месяца назад

This is “math for dummies” and I appreciate it….🤓🤓

@jebbiekanfer8843 4 месяца назад

Me too

@terry_willis 4 месяца назад

Me 3

@swhip897 4 месяца назад

Same here

@mikehigham23 4 месяца назад

So long since I've done any maths but genera arithmetic. You remind and teach well. Thanks. But, what when you have a -ve exponent above and a +ve exponent below or vice versa? I get the solution of two -ve exponents, but I'll guess with mixed exponents, say: 3^-2 / 4^3 => ( [ (3^2) * (4^3) ] / 1) = 9 * 16 = 144 ?

@raya.pawley3563 24 дня назад

Thank you

@aryusure1943 4 месяца назад

Yeahhhhh! Your teachings are producing results Mr YT Math. 2 to the negative 2 = 1/2 to the power 2. The rest is easy. :) Last week I would have failed but I learned the rule in one of your videos and "voilà". Thanks!

@gopherspace8571 2 месяца назад

Awesome thanks 👍💪👋😁😎❤️

@QWQ1111 4 месяца назад

Remembering the rule is great, but if I know how the rule is proven that’s even better. I tutor math and I tell my students over and over again that if you multiply “something” by 1 you haven’t changed its value (the Identity Principal). So, if I multiply 1 / 2^-2 by 1 then I still have the same value. Therefore, if I multiply 1 / 2^-2 by 2^2 / 2^2 I get 2^2 / (2^-2) (2^2). I add the exponents of the divisors since the base is the same and then get 2^2 / 2^0. Any number to the zero power is 1. So, then I have 2^2 / 1 or 2^2 = 4. Note: any number divided by itself is 1, so 2^2 / 2^2 = 1

@gamer122333444455555 4 месяца назад

I understand that we're taught that a negative power flips it to th denominator and vice versa but, that description seems to leave out steps in the process without ever learning the steps that lead to the conclusion when the negative power is in the denominator. 1/x^-y = 1/(1/x^y) = x^y. It seems like I missed a step between the 2nd and 3rd steps but I'm unsure how to write it properly if don't use numbers in place of the variables. 1/2^-2 = 1/(1/4) = 1/.25 = 4. Useful shortcut that we take for granted just like similar to useful formulas we don't usually derive on our own out of convenience or time constraints until maybe much higher maths. Apologies for the paragraph.

@panlomito 4 месяца назад

Simple: 1 x 2² = 4 so answer A

@aliihsanozcan615 4 месяца назад

I like maths after 55 years,how easy it was 😌.

@heatherbartusch5239 4 месяца назад

Yes! Took about 3 seconds. Thank you good teacher....

@plozar 4 месяца назад

Too much rambling on

@Ayelmar 4 месяца назад

At the title card, and if I remember correctly, the answer is a) 4. 2^2 wiykd or course be 4, but 2^-2 would be the inverse of that, or 1/4. And then 1 / 1/4 would be the same as 1 * 4 = 4.

@giannaleoci2328 4 месяца назад

1/(2)^-2=2^2=4

@InPursuitOfCuriosity 3 месяца назад

Why doesn't the base number change signs when it moves to the opposite side of the fraction?

@jald910 4 месяца назад

A) 4

@columbia2635 4 месяца назад

64 and I had to really think for a moment....but once I got over the initial panic, it came to me pretty quickly. Surprise, surprise!!

@apriljodoin9643 Месяц назад

What is the logic that turns a negative exponent in a fraction???

@emiliat.5881 4 месяца назад

It’s nice to know the rules, but it looks to me like a trick that I have to remember but I can’t reason it. I want to rationalize the problem so I know why it works. And can duplicate it by reasoning and not by remembering the rule. I hope this makes sense to you.

@apriljodoin9643 Месяц назад

Why does flip flopping the fraction get rid of the exponent? I don’t get it.

@jimmartin8853 4 месяца назад

Wish I had you as a math teacher 50 years ago. My biggest problem with math is relating it to anything. Is there an example of where I would use this in the real world?

@MohammedAhmed-ws3ho 4 месяца назад

1/1 / 1/2^2 1/1*2^2/1 4

@charlesbusch8739 4 месяца назад

When you teach classes do you repeat the same thing every day?

@aryusure1943 4 месяца назад

Could you please make a video to explain the rule when we have addition or substraction of numbers with exponents? Ex: What is the rule when we have: a to the power m MINUS (OR PLUS) a to the power n. Thank you in advance.

@terryjohinke8065 4 месяца назад

4 is the answer. worked out as below.

@johnplong3644 3 месяца назад

It is not going to be negative so b and d are ruled out looking at it Answer is 4 I reason that out This problem is Extremely easy I recommend doing problems like this on tests I just wrote the answer down and didn’t show my work …Teachers hate that Lol That was Why I did it They wanted you to show each and every step I would combine steps Funny when I tutor In Pre-Algebra and Algebra I make my kids ( students) show every step.

@patrickduncan9677 4 месяца назад

I realize just how little Algebra effects my life.

@pamspencer5377 4 месяца назад

@dazartingstall6680 4 месяца назад

2^-2 = 0.25, 1/0.25 = 4

@GaryBricaultLive 3 месяца назад

This could have easily been explained in about 3 minutes with direct and simple examples.

@topkatz58 4 месяца назад

1/2^-2 = 1/1/2² = 2² = 4

@MichaelNelson-rt3du 4 месяца назад

@russelllomando8460 4 месяца назад

got it 4 neg exp brimgs a fraction 1/{1/4) = 4 thanks for the fun.

@1961ebutuoy 4 месяца назад

a) =4.. I hope

@michaeljozwiak25 4 месяца назад

d). -1/4.

@franklinbrown5625 6 дней назад

1÷ 1/(1/2^2) = 1×(2^2/1)=4

@derbillster 4 месяца назад

I am a mathematical idiot : I have forgotten how to do differential calculus and integral calculus. I still have problems doing simple math in my head.😢

@jebbiekanfer8843 4 месяца назад

I took a flyer on that because I remembered something about neg to pos. Think I got it wrong

@farjanajahan3222 24 дня назад

A. 4

@MrMousley 3 месяца назад

If I remember correctly 2^2 = 4 but 2^-2 = 1/4 So we have 1/(1/4) which is 4

@artcraftmathcareenjoylearn1434 29 дней назад

a) 4

@aaron-dd5zr 4 месяца назад

I have not done fractions in very long time. Their was that minus symbol. I thought -1/4. Then I started thinking to much. Then you circled it.

@swhip897 4 месяца назад

Negative denominator, flip it.. flip it my professor said 😂

@ronnieq9706 4 месяца назад

a. 4

@alexandrabloch1687 Месяц назад

Shalom John, The answer is 9

@johnjdevlin2610 4 месяца назад

Thanks for giving a detailed explanation that if you get wrong answers on a test your score will be lower. I don't think any of us here would have guessed that.

@gregc.mariano9226 4 месяца назад

a 1x 2^2= 1x4=4

@oyesolaayobami6238 4 месяца назад

Answer: a) 4

@sharonsmith1505 4 месяца назад

I got 4.. 2+2

@cobbler88 4 месяца назад

Some of you are getting these too quickly. Remember to make it as complicated as possible so that you UNDERSTAND how it works. You know, like that Common Core stuff we totally needed to put an end to all the success we were having doing it the other way for generations. :)

@samchalohana4423 4 месяца назад

4 is the answer

@user-ri6rn7ti5h 4 месяца назад

C1/4 1/2-2=1/4

@KW-gb9cd 4 месяца назад

a^(-2) = 1/(a^2), therefore the answer is 4.

@seibertmccormick184 4 месяца назад

I was lost, but now I'm found.

@pandurangaraonimmagadda9966 3 месяца назад

I t is 2 power 2=4 So answer is (a)

@laurindapace2164 3 месяца назад

1/4

@johncarlo2630 4 месяца назад

A is answer

@jebbiekanfer8843 4 месяца назад

You can get me on math but not on medicine

@dwaipayandattaroy9801 4 месяца назад

Its 1/1/4 = 4 , cause 2^-2 = 1/2^2 = 1/4 , so 1/1/4 = 4/1 = 4 , If 1/1/4 and not 1/1/4/1 1/1× 1/4 = 1/4 , forgot the rule for a/a/b , its b/a , na 4 will be answer 🎉

@leonorwilson6055 21 день назад

I think the answer is D

@ronaldwalker2520 3 месяца назад

@ernestcook4285 4 месяца назад

@queerstudbroalex 4 месяца назад

@LucyWalusiak 4 месяца назад

@deograciousuwiragiye8429 4 месяца назад

Correct answer is 4

@danielmadden9691 4 месяца назад

@lakediver6388 4 месяца назад

So what is the correct solution? You solved 3^-2 not 1 / 2^-2 ! How did you get your answer? What is the correct answer ? You do this often ! PLEASE SOLVE THE QUESTION AT HAND !

@russellsullivan1804 3 месяца назад

'Promosm'

@jebbiekanfer8843 4 месяца назад

Another failure for me

@lisahamilton9105 4 месяца назад

1/4 the answer

@harrymatabal8448 4 месяца назад

Because they talk too much.

@patrickduncan9677 4 месяца назад

Your explanations are confusing for me. They seem to go off track just enough I miss the point. I must be stupid. Good to know that know.

@georgemalkin6546 4 месяца назад

I enjoy your problems but wish your explanations could be a bit more pithy.

@Lady_A.R.Browne 4 месяца назад

@plozar 4 месяца назад

Stop rambling and just get to the point

@olenfersoi8887 4 месяца назад

Sorry, but it would be just as easy to simply explain the operations with the actual numbers rather than always converting than to unknowns, especially when the figures in the problem are simple, like "2". The viewer will learn just as much if you just give the rules and solve the problem step by step rather than giving other examples that are no more obvious than the problem itself!,