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Simultaneous Equations, one Quadratic, one Linear #2 

Maths with Jay
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2 equations in 2 unknowns: Solve simultaneous equations by eliminating x. Worked example. Higher GCSE.

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27 май 2018

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Комментарии : 197   
@clo4845
@clo4845 3 года назад
Wow this was so incredibly helpful! Got my maths exam tomorrow, hopefully it all goes well, thank you.
@MathsWithJay
@MathsWithJay 3 года назад
Best of luck!
@Dashing_Shaheer
@Dashing_Shaheer 2 года назад
How'd it go
@totallyinnocentchannel7721
@totallyinnocentchannel7721 Год назад
what did u get
@somerandomdiamond7345
@somerandomdiamond7345 Год назад
How did it go bruh
@husaamasam5827
@husaamasam5827 10 месяцев назад
Ur 2 years late 😢 😭
@adinagreen8247
@adinagreen8247 4 года назад
this was awesome jay!!! i absolutely looooove your videos -this is probably the best thing on youtube right now i would love to meet you as your my role model keep on being a legend i love you!!!!
@MathsWithJay
@MathsWithJay 4 года назад
Thank you so much, Adina. It's great to know that you're finding these videos useful.
@rsannie1
@rsannie1 Год назад
This was an amazing video, I was so confused in this topic and I tuft I was going to fail my exam on this topic, but now I understand because of you. Thank you so much
@MathsWithJay
@MathsWithJay Год назад
Glad it was helpful! Good luck with your exam
@ordinal1489
@ordinal1489 3 года назад
Thanks so much! Was really struggling with these kinds of questions. I’ve got an exam tmrw and have this in it.
@MathsWithJay
@MathsWithJay 3 года назад
Glad it helped! Good luck!
@helenasiput1652
@helenasiput1652 2 года назад
thank you your explanations and working was brief, simple and best of all i actually understood quicker than i thought
@MathsWithJay
@MathsWithJay 2 года назад
Great to hear!
@MrDivy-mc5qc
@MrDivy-mc5qc 2 года назад
Most helpful video on RU-vid, I would say. This video helped me more than any other video did
@MathsWithJay
@MathsWithJay 2 года назад
Wow, thanks!
@baymax8984
@baymax8984 Год назад
You make my math skill improves through this video. Thank you a lot.
@MathsWithJay
@MathsWithJay Год назад
Glad to hear that!
@asmiforeal
@asmiforeal Год назад
thank you so so much for this you explained this so clearly! i can't believe we're expected to do this for gsce omg
@MathsWithJay
@MathsWithJay Год назад
You're welcome....it's grade 8....really important if you're going on to A' level maths
@sissi9100
@sissi9100 3 месяца назад
Thank you! I’m an IGCSE student and this helped!
@MathsWithJay
@MathsWithJay 3 месяца назад
Excellent!
@vehobogi2502
@vehobogi2502 3 года назад
thank you so much, this helped me with 20% of my exams
@MathsWithJay
@MathsWithJay 3 года назад
Great to hear!
@Heatherisbetterthanuu
@Heatherisbetterthanuu 3 месяца назад
Thank you so much I have my test tomorrow and this really helped !
@MathsWithJay
@MathsWithJay 3 месяца назад
Best of luck!
@edwinisawesome
@edwinisawesome 4 года назад
Thank you so so much for this I'm definitely subscribing
@MathsWithJay
@MathsWithJay 4 года назад
Awesome! Thank you Edwin!
@aaishaidrees8447
@aaishaidrees8447 2 года назад
Very helpful! But I can't seem to understand the last part (graph), what numbers did you use to plot the first equation?
@MathsWithJay
@MathsWithJay 2 года назад
The simplest points to plot are on the axes, and these are where x=0 and y=0, so just substitute into x+2y=8: When x=0, 2y=8, so y=4. When y=0, x=8. Does that help?
@aaishaidrees8447
@aaishaidrees8447 2 года назад
@@MathsWithJay Yes, perfect! Thanks
@leighjain6742
@leighjain6742 9 месяцев назад
This is my least favourite topic in all of the gcse spec and, being in set 1, it was kinda rushed through. I have an exam in 3 days so I decided to focus on quadratics as I had no idea what to do and this video has genuinely taught me more in 8 minutes than my teacher taught us in like 3 hours.
@MathsWithJay
@MathsWithJay 9 месяцев назад
I'm glad that you found it useful....it is an important topic if you are going to study maths at a higher level. Good luck in your exam.
@blendiibishi349
@blendiibishi349 2 года назад
beautifully explained, thank you 👏👏👏
@MathsWithJay
@MathsWithJay 2 года назад
You're welcome 😊
@grounded7397
@grounded7397 3 года назад
Thanks for teaching!
@MathsWithJay
@MathsWithJay 3 года назад
My pleasure!
@wowwiejohnny636
@wowwiejohnny636 5 лет назад
nice one br0
@MathsWithJay
@MathsWithJay 5 лет назад
Thank you!
@patrickbateman3576
@patrickbateman3576 2 года назад
Another generation, thanks for the help got my exams soon.
@MathsWithJay
@MathsWithJay 2 года назад
Best of luck!
@dehanbadenhorst1398
@dehanbadenhorst1398 2 года назад
Thank you, that was very helpful!
@MathsWithJay
@MathsWithJay 2 года назад
You're welcome!
@alidanish
@alidanish 9 месяцев назад
Omg, this was so well explained, I wish u were my maths teacher, thank you so much!!!
@MathsWithJay
@MathsWithJay 9 месяцев назад
Wow, thank you!
@liliosa-sj7ks
@liliosa-sj7ks 2 месяца назад
Exactly, l also wish the same too
@thotpolice5244
@thotpolice5244 2 года назад
It's 2am and I gotta learn off 6months worth of maths for tomorrow. Pray for me 🙏
@MathsWithJay
@MathsWithJay 2 года назад
Good Luck!
@FamJam_Vlogs
@FamJam_Vlogs 2 года назад
Hey! Thank you so much for video, but I have a doubt in how you drew the graph. Could you please explain in a more detailed way.
@MathsWithJay
@MathsWithJay 2 года назад
How would you start drawing the graph?
@michaelange.
@michaelange. 2 месяца назад
great video starting gcses in a week
@MathsWithJay
@MathsWithJay 2 месяца назад
Good luck!!
@liliosa-sj7ks
@liliosa-sj7ks 2 месяца назад
Thank you so much for the help.
@MathsWithJay
@MathsWithJay 2 месяца назад
Glad it helped!
@shivcum
@shivcum 2 года назад
you sound like gillian anderson i love it
@MathsWithJay
@MathsWithJay 2 года назад
Thank you!
@alicel4280
@alicel4280 2 года назад
What grade would this be bc it’s rlly hard, also how would you know whether to use 0.4 or 6 seeing as they both equal y
@MathsWithJay
@MathsWithJay 2 года назад
Are you doing GCSE? Look at the graph where I show why there are 2 values, then you will see that there are 2 solutions.
@alicel4280
@alicel4280 2 года назад
@@MathsWithJay hi yes I am but I was just wondering the grade this type of work would be in terms of GCSE grades, whether it’s grade 6 work or higher? Thanks
@MathsWithJay
@MathsWithJay 2 года назад
@Alice: Because these are challenging, they are grade 8 (whereas the easy simultaneous equations are grade 5)
@johnsxn661
@johnsxn661 3 года назад
God Jay your a life saver 🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙌🙌🙌🙌🙌🙌🙌🙌🙌🙌🙌🙌🙌🙌🙌🙌
@MathsWithJay
@MathsWithJay 3 года назад
Glad to know this helped!
@ogepatiece2925
@ogepatiece2925 3 года назад
Thanks so much. I really hope with this I pass math exam today.
@MathsWithJay
@MathsWithJay 3 года назад
Best of luck!
@nk-vo2rf
@nk-vo2rf 4 года назад
Thank you very much
@MathsWithJay
@MathsWithJay 4 года назад
You are welcome
@cubingtojupiter
@cubingtojupiter Месяц назад
I greatly thank you for helping me
@MathsWithJay
@MathsWithJay Месяц назад
You are most welcome
@RickRolledRegulator
@RickRolledRegulator 19 дней назад
when u do the factorising bit (5y-2)(y-6)=0 what did u do with -32y did u just leave it or
@MathsWithJay
@MathsWithJay 19 дней назад
5y x -6 = -30y and -2 x y = -2y, adding -30y and -2y gives -32y
@fitzylifts
@fitzylifts 3 года назад
what do i do if the non linear is, xy = 12 instead of the x and y squared
@MathsWithJay
@MathsWithJay 3 года назад
Make x or y the subject, then sub in the other equation, so that it only has x or y
@fullgist6723
@fullgist6723 Месяц назад
This is very insightful, you have really help me, which app do u use in making this video
@MathsWithJay
@MathsWithJay 28 дней назад
You're welcome. I used Camtasia software to record and edit the video.
@fullgist6723
@fullgist6723 27 дней назад
@@MathsWithJay It's amazing... Please keep it, you're doing a great job
@niv_g
@niv_g 2 года назад
great video thanks
@MathsWithJay
@MathsWithJay 2 года назад
You are welcome!
@ivanakona392
@ivanakona392 Год назад
thank you so much for the help
@MathsWithJay
@MathsWithJay Год назад
Happy to help
@PhiferCooksJR1
@PhiferCooksJR1 7 месяцев назад
Thanks a lot.
@MathsWithJay
@MathsWithJay 7 месяцев назад
Most welcome!
@harshdani2717
@harshdani2717 3 года назад
Thank you so much buddy❤🙏
@MathsWithJay
@MathsWithJay 3 года назад
Most welcome 😊
@lonelycone382
@lonelycone382 9 месяцев назад
Thank you very helpful
@MathsWithJay
@MathsWithJay 9 месяцев назад
You're welcome!
@mareksogars2954
@mareksogars2954 4 года назад
I don't get how (5y - 2) (y - 6) makes -32y. Surely it would be -8y +12. I dont get thissss
@MathsWithJay
@MathsWithJay 4 года назад
(-2)*(y) = -2y and (5y)*(-6) = -30y, then -2y - 30y = -32y
@Jack-hd3ov
@Jack-hd3ov 4 года назад
(5y - 2)(y - 6) = 5y^2 - 30y -2y + 12 www.mathsisfun.com/definitions/foil-method.html -30y - 2y = -32y www.mathsisfun.com/algebra/like-terms.html
@MontahaAlqways
@MontahaAlqways 2 месяца назад
8*2=16+16=32
@Onyx33
@Onyx33 Год назад
Thank you 💜
@MathsWithJay
@MathsWithJay Год назад
You are so welcome
@gnananandumamakeshwaran7217
@gnananandumamakeshwaran7217 2 года назад
Hi > it is useful , can i get some practice question link
@MathsWithJay
@MathsWithJay 2 года назад
ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-gTBWy2bWiV8.html and ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Go7s_7Pmr44.html are similar
@randycauliflower8332
@randycauliflower8332 4 года назад
Are u allowed to change the order ?
@MathsWithJay
@MathsWithJay 4 года назад
@Dexterous Logic: Of what? At what time in the video?
@_quixote
@_quixote Год назад
Oh, this isnt too bad actually. Thanks
@MathsWithJay
@MathsWithJay Год назад
welcome
@ChloeClifford
@ChloeClifford 3 месяца назад
So helpful
@MathsWithJay
@MathsWithJay 3 месяца назад
Glad it was helpful!
@rosemayy
@rosemayy 3 года назад
what do you do if x is like 4x ect
@MathsWithJay
@MathsWithJay 3 года назад
Divide through by 4
@alimuhammadlearns
@alimuhammadlearns Год назад
Me covering whole syllabus in one day 😂
@MathsWithJay
@MathsWithJay Год назад
Good Luck!
@OlubiyiOlubola-fc9lf
@OlubiyiOlubola-fc9lf Год назад
Thank you so much ma l am glad
@MathsWithJay
@MathsWithJay Год назад
You are most welcome
@eddieday16
@eddieday16 Год назад
Wow you've literally replied to every comment
@MathsWithJay
@MathsWithJay Год назад
Amazing!
@MontahaAlqways
@MontahaAlqways 2 месяца назад
How do you get 0.4 when you sibtitute by 3
@MathsWithJay
@MathsWithJay 2 месяца назад
At what time in the video?
@Tizianoffs
@Tizianoffs 3 года назад
3:21 shouldn't it be - 32y+5y squared since you canceled the 64
@MathsWithJay
@MathsWithJay 3 года назад
We are not cancelling 64. We are subtracting 52 from both sides: 64 - 52 = 12
@harshdani2717
@harshdani2717 3 года назад
Ur the bessttttt
@MathsWithJay
@MathsWithJay 3 года назад
Thank you
@maduanderline8847
@maduanderline8847 Год назад
can you please solve this equation this night using simultaneous equation 1 linear and 1quadratic (4x²-y²=15) (2x-y=5)
@MathsWithJay
@MathsWithJay Год назад
Start by making y the subject of the second equation...
@najibabsullahi7655
@najibabsullahi7655 Год назад
How did u get 12 in the first equation
@MathsWithJay
@MathsWithJay Год назад
At what time in the video?
@meganreid9032
@meganreid9032 2 года назад
Question how did you get 32?
@MathsWithJay
@MathsWithJay 2 года назад
At what time in the video?
@MineveL
@MineveL 2 года назад
-16y-16y
@tobithegreatest9963
@tobithegreatest9963 3 года назад
how did you get -32y im confused
@MathsWithJay
@MathsWithJay 3 года назад
At what time in the video?
@tobithegreatest9963
@tobithegreatest9963 3 года назад
@@MathsWithJay never mind i worked it out lol. 2:45 was the time anyways
@tatendabrandymavenga8537
@tatendabrandymavenga8537 Год назад
Hi Jay... This video helped a lot.. Can please make a video of plotting the the lines... Im having a hard time plotting those
@MathsWithJay
@MathsWithJay Год назад
You could rearrange the 1st one to make y the subject, so y=mx+c. The other one is a circle, centre the origin...
@mathematicsdauda492
@mathematicsdauda492 3 года назад
OH THANKS YOU
@MathsWithJay
@MathsWithJay 3 года назад
Thanks!
@Ore_eu
@Ore_eu Год назад
What if the quadratic equation is x²-y²=52
@MathsWithJay
@MathsWithJay Год назад
Then the same method will apply
@Farhaan39
@Farhaan39 3 года назад
This is tough😳
@MathsWithJay
@MathsWithJay 3 года назад
Do you have a question about it?
@Farhaan39
@Farhaan39 3 года назад
@@MathsWithJay nope its fine now i understood as i progressed further whilst watching the video. Thanks!
@PeachandMario
@PeachandMario 9 дней назад
3:50 So this cannot to be factories , QUADRATIC FORMULAE only
@MathsWithJay
@MathsWithJay 7 дней назад
Be patient! Keep watching the video for another minute and you will see how to factorise...
@nonwhatsoever2621
@nonwhatsoever2621 3 года назад
i dont get why is it y=0.4
@MathsWithJay
@MathsWithJay 3 года назад
At what time in the video?
@liliosa-sj7ks
@liliosa-sj7ks 2 месяца назад
it is y=0.4 because -2 was moved after the equal sign and it become 0+2=2,,,,,,,then it was 5y=2 divide by 5 =0.4....l don't know if l helped or not.
@person-hw2zx
@person-hw2zx Год назад
-6 x 5 is -30 so im confused to why you said -6x5y comes to -32y. I would please like some help 4:44
@MathsWithJay
@MathsWithJay Год назад
"and -2y" so -30y - 2y = -32y
@kingz3358
@kingz3358 Месяц назад
I don’t understand the last part where you bracket and try to get -32y
@MathsWithJay
@MathsWithJay Месяц назад
At what time in the video?
@kingz3358
@kingz3358 Месяц назад
@@MathsWithJay towards the end
@oriz2z
@oriz2z Год назад
How is y= 0.4? at 4:51
@MathsWithJay
@MathsWithJay Год назад
5y-2=0, so 5y=2, and y=2/5
@tommygq9078
@tommygq9078 2 года назад
I thought that (8-2y) squared would be (8-2y)(8+2y) as a minus by a plus gives a minus
@MathsWithJay
@MathsWithJay 2 года назад
But 3 squared is just 3*3, no change of sign
@tommygq9078
@tommygq9078 2 года назад
@@MathsWithJay yes but since this is a minus to make it a minus again you must do a plus no?
@MathsWithJay
@MathsWithJay 2 года назад
No....whenever you square something, the something remains the same. When you multiply (-2y) by (-2y) it is a positive answer. Does that make sense?
@xfacitoartyi4521
@xfacitoartyi4521 Год назад
Yes but it would be 64 +4y
@pianogirl3242
@pianogirl3242 2 года назад
Sounds like Jean milburn
@MathsWithJay
@MathsWithJay 2 года назад
Dr Milburn?
@oisinberry8981
@oisinberry8981 2 года назад
Legit the same Thing
@nkuk7713
@nkuk7713 10 месяцев назад
I do not understand how you got y when you forgot about -32y
@MathsWithJay
@MathsWithJay 10 месяцев назад
At what time in the video?
@ogbomodesmondandrea1858
@ogbomodesmondandrea1858 3 года назад
Please. Can I get a private chat with you please I really need it I love the lesson please can u be of help by teaching
@MathsWithJay
@MathsWithJay 3 года назад
Sorry , that's not possible...do you have a question related to the topic in this video?
@oluwatofaratibabalola148
@oluwatofaratibabalola148 2 года назад
I am trying to solve X + 2y =3.....(1) X^2 + 2y^2 =6......(2)
@MathsWithJay
@MathsWithJay 2 года назад
That's similar to the equations in this video. So how will you start?
@shanashuaib8651
@shanashuaib8651 3 года назад
i didn’t understand why its (5y-2) (y-6)
@MathsWithJay
@MathsWithJay 3 года назад
At what time in the video?
@liliosa-sj7ks
@liliosa-sj7ks 2 месяца назад
Anyone to help me with this simultaneous equation x-y=2 2x to the power of 2 -3y to the the power of 2=15
@MathsWithJay
@MathsWithJay 2 месяца назад
Start by numbering the equations, then make x the subject of the first one...
@bedwars1013
@bedwars1013 Год назад
saved my exams.
@MathsWithJay
@MathsWithJay Год назад
Excellent!
@beckyamadasun1043
@beckyamadasun1043 4 года назад
Actually its a woman
@MathsWithJay
@MathsWithJay 4 года назад
@Becky: :)
@harshdani2717
@harshdani2717 3 года назад
@@MathsWithJay aye😂🤩🤩
@ignition_ecstasy
@ignition_ecstasy 4 месяца назад
you are jay?
@MathsWithJay
@MathsWithJay 4 месяца назад
Yes!
@euthypro8531
@euthypro8531 Год назад
sound jay
@MathsWithJay
@MathsWithJay Год назад
thank you
@sahedgaminghd618
@sahedgaminghd618 Месяц назад
Isnt y=-0.4 and -6
@MathsWithJay
@MathsWithJay Месяц назад
Remember that you can check your solutions by substituting them in to both equations
@think_ultimate
@think_ultimate Год назад
All the best for your tomorrow's Exam ✌️😂
@MathsWithJay
@MathsWithJay Год назад
🤞
@fortnitelegend8912
@fortnitelegend8912 2 года назад
Tomorrow is my exam plzz pray for me
@MathsWithJay
@MathsWithJay 2 года назад
Good luck!
@kirishatanna8128
@kirishatanna8128 Год назад
i don't understand the factorising
@MathsWithJay
@MathsWithJay Год назад
See ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-sMj1GAc3hAU.html
@earlthehoodedsweater
@earlthehoodedsweater 2 года назад
Still don’t understand it never gonna pass😞
@MathsWithJay
@MathsWithJay 2 года назад
At what time in the video do you have a question?
@Rosie-gu5wy
@Rosie-gu5wy 3 месяца назад
This was nit helpful 😢 still failling maths 😮😅😢 please somome send me money to afford a tutor and some new kicks 😊thanks x
@MathsWithJay
@MathsWithJay 3 месяца назад
At what time in the video do you have a problem?
@rrayhana.r
@rrayhana.r 5 месяцев назад
i don’t understand this
@MathsWithJay
@MathsWithJay 5 месяцев назад
At what time in the video?
@lolcow62
@lolcow62 3 года назад
This makes no sense
@MathsWithJay
@MathsWithJay 3 года назад
At what time in the video?
@zzain2708
@zzain2708 Год назад
this is confusing
@MathsWithJay
@MathsWithJay Год назад
At what time in the video?
@zzain2708
@zzain2708 Год назад
@@MathsWithJay 2:44
@MathsWithJay
@MathsWithJay Год назад
8 x (-2y) = -16y and (-2y) x 8 = -16y
@zzain2708
@zzain2708 Год назад
@@MathsWithJay ok thanks i get it now :)
@HassanCodA-Xod8hm.
@HassanCodA-Xod8hm. 5 месяцев назад
🙄 🙄
@MathsWithJay
@MathsWithJay 5 месяцев назад
🙂
@Hannah05123
@Hannah05123 3 года назад
Thanks so much
@MathsWithJay
@MathsWithJay 3 года назад
You're welcome!
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