Thank you so much, I didn’t really grasp this in intervention as my teacher explains fast and I do ask her how she got something n she’ll explain it but I still won’t get it! So I really like the way you tell what you do as you do each step. Thank you☺️
tysm was stuck on the first bit of the equation because my y wasn’t the subject but with your explanation i figured out how to make it the subject! in hindsight it was obvious but thanks for everything you do
The method is usually to use the linear equation to make one variable the subject, then to substitute it in the quadratic, and then solve the quadratic....so often worth several marks in an exam.
These kind of questions will only be on the Higher papers...be sure that you understand the simper simultaneous equations and quadratic equations before looking at these hard ones. A good video for revising factorising quadratics is: th-cam.com/video/sMj1GAc3hAU/w-d-xo.html There are easy ones, followed by hard ones at the end.
@Abi These questions are common, so it is worth practising lots of them. They are grade 8 questions and usually allocated a lot of marks. Here's another one: th-cam.com/video/p15_GD_Eks0/w-d-xo.html
The formula will always give you the correct solutions to a quadratic equation, but it is not necessarily the fastest method. See th-cam.com/users/edit?o=U&feature=vm&video_id=sMj1GAc3hAU for lots of examples of solving quadratics by factorising. Also see th-cam.com/users/edit?o=U&feature=vm&video_id=qAUQ-_VxLZA where it is quicker to factorise the two quadratics
@mitchel wazowski: See th-cam.com/video/sMj1GAc3hAU/w-d-xo.html for this method of solving quadratics. If you prefer your method and it gives the same solution then use that.
In the UK, this sort of question is in the Higher GCSE exam, which students take at 16 years old. Before solving these equations, they would solve linear simultaneous equations, such as: th-cam.com/video/qHh4jFW1wwg/w-d-xo.html and solve quadratic equations like those here: th-cam.com/video/sMj1GAc3hAU/w-d-xo.html .....What country are you in...and what exams do you do?
So you will be in year 10 in September and taking the GCSE in 2020? ...This question is grade 8, so quite hard, and you are not likely to have seen it in year 9.
(2x) multiplied by (2x) is 2^2 multiplied by x^2, so 4 multiplied by x^2, which is 4x^2. Then (2x) multiplied by (-3) is (-6x). And (-3) multiplied by (2x) is (-6x). Adding (-6x) to (-6x) gives (-12x)
Thank you so much, I didn’t really grasp this in intervention as my teacher explains fast and I do ask her how she got something n she’ll explain it but I still won’t get it! So I really like the way you tell what you do as you do each step. Thank you☺️
@Immy: Thank you so much!
Thank YOU 💖
whos doing last minute revision
@Najma ahmed: Lots of GCSE students...views here peaked between 7am and 8am this morning!
this is explained so much better than my math teacher😭😭😭 thank u sm
You are so welcome!
Thank you soooo much Maths With Jay. This helped me understand this much better.
@Joshua Holder If you want another example: th-cam.com/video/p15_GD_Eks0/w-d-xo.html
Thank you for your feedback - much appreciated
@@MathsWithJay That video was also really helpful thanks again😀
Thank you!
tysm was stuck on the first bit of the equation because my y wasn’t the subject but with your explanation i figured out how to make it the subject! in hindsight it was obvious but thanks for everything you do
Glad it helped!
This is a brilliant video. I love simultaneous equations, thanks for the video!
Glad you liked it!
Thank you so much Jay this really helped me in a last-minute exam, Is there an easier method in solving this?
The method is usually to use the linear equation to make one variable the subject, then to substitute it in the quadratic, and then solve the quadratic....so often worth several marks in an exam.
This really helped with my math, I Thank you!!! 😎😎😎
You're very welcome!
i still dont understand though because there are so many different types of equations. please help i have year 10 mocks in a few weeks
Are you doing GCSE Higher or Foundation?
i haven't been told yet but im just about pulling through set 2 and in set 2 they are pushing us all for higher
These kind of questions will only be on the Higher papers...be sure that you understand the simper simultaneous equations and quadratic equations before looking at these hard ones. A good video for revising factorising quadratics is: th-cam.com/video/sMj1GAc3hAU/w-d-xo.html There are easy ones, followed by hard ones at the end.
@@MathsWithJay higher
How did they go lol
Sorry, I know this may be silly but how did 2×7/5-3 become -1/5?
2x7=14
3=15/5
(14-15)/5=-1/5
Maths with Jay 2x2=14???
Oops!! Thank you....at least someone is reading my replies!
Substitution is the best way of solving linear and non linear equations.
Always?
Thanks for the video. Im ready for test now 😭😭
All the best for your test
How u do it when both start with y= ?
If y = 2x+1 and y = 3x - 2, then 2x + 1 = 3x - 2
Maths with Jay oh right thanks
Are these questions common in the higher maths paper or do they appear rarely?
@Abi These questions are common, so it is worth practising lots of them. They are grade 8 questions and usually allocated a lot of marks. Here's another one: th-cam.com/video/p15_GD_Eks0/w-d-xo.html
Maths with Jay ok thanks, how many marks?
@@abibott5086 vary 4-6
I used a quadratic formula and i gt it right can u always use it?
The formula will always give you the correct solutions to a quadratic equation, but it is not necessarily the fastest method. See th-cam.com/users/edit?o=U&feature=vm&video_id=sMj1GAc3hAU for lots of examples of solving quadratics by factorising.
Also see th-cam.com/users/edit?o=U&feature=vm&video_id=qAUQ-_VxLZA where it is quicker to factorise the two quadratics
I understand the first couple steps but at 2:30 I get confused and give up
That's covered in this video...examples 8 and 9, but work through some of the earlier ones too if necessary: th-cam.com/video/sMj1GAc3hAU/w-d-xo.html
Maths with Jay thank you 😊
i dont understand how you factorised 2:39
wouldnt you use the ac method?
@mitchel wazowski: See th-cam.com/video/sMj1GAc3hAU/w-d-xo.html for this method of solving quadratics. If you prefer your method and it gives the same solution then use that.
Thanks it helps me understand much better than my teacher..🖤☺️
Happy to help
How did you get 2×7/5 -3 = -1/5
At what time in the video?
@@MathsWithJay no no i got the answer no need to explain
Where does the 12x come from?
At what time in the video?
whats the youngest age u think someone could solve this at? im 13, nearly 14
In the UK, this sort of question is in the Higher GCSE exam, which students take at 16 years old. Before solving these equations, they would solve linear simultaneous equations, such as: th-cam.com/video/qHh4jFW1wwg/w-d-xo.html and solve quadratic equations like those here: th-cam.com/video/sMj1GAc3hAU/w-d-xo.html .....What country are you in...and what exams do you do?
im in england and im doing gcse edexcel
So you will be in year 10 in September and taking the GCSE in 2020? ...This question is grade 8, so quite hard, and you are not likely to have seen it in year 9.
ok thanks, yh i havent been taught this at school yet, but my tutor taught me this, and this video helped me thank you!
Excellent! If you want to try a harder example, see: th-cam.com/video/p15_GD_Eks0/w-d-xo.html
That is soooooo useful
@Bertie: Excellent! Thank you!
Is this a Foundation question or a Higher, please?
This is GCSE Higher, grade 8
Thanks Jay, top lady :)
If you found that video useful, you may like th-cam.com/video/p15_GD_Eks0/w-d-xo.html - a little trickier!
thank you thank you
You are very welcome
Thanks jay
You're welcome!
Thank you very much
You are welcome😊
❤❤
😍
Thank you so much!
Thank you!
How did you get 4x ^2 in the Third one??
@Grace: At what time in the video?
1:57 and how did you get 12x aswell
(2x) multiplied by (2x) is 2^2 multiplied by x^2, so 4 multiplied by x^2, which is 4x^2.
Then (2x) multiplied by (-3) is (-6x). And (-3) multiplied by (2x) is (-6x). Adding (-6x) to (-6x) gives (-12x)
thanks
@Thomas: Thank you!
factorizing bit lost me....
Does this help: th-cam.com/video/sMj1GAc3hAU/w-d-xo.html
very helpful
Glad to hear that
Excellent
@RICHARD EVANS: Thank you!
I am literally 12 years old and doing this math. I wouldn't consider myself a mathematical prodigy as I plan to pursue a career in medicine.
@Bipen Subba: Math is important in medicine!
u dont sound like jay
Really?
thanks hahaha. my days
Our pleasure!
she lost me at the bracket part lol
@Kakola Kalia: At what time in the video?
1:35
But now I kinda got the hang of it. Thanks for making your videos it's really helpful
@Kakola Kalia: The hardest part is usually the first part...here's another similar example: th-cam.com/video/p15_GD_Eks0/w-d-xo.html