Why does substituting -b into the equation give you the remainder? I get that if dividing by a factor you should get a remainder of 0, but I don't understand why you'd substitute -b to divide by (x + b).
(x+1) is a factor so you sub in the alternate sign so in this case (-1), this applies to all questions of that sort. For example if the factor was (x+3) then we would sub in (-3) instead of the x and if factor is for example (x-3) then sub in (3). If that makes sense :)
@@vseunos9261 Thank you. My question is more is there a rule I have to follow or is if just one of those things in maths that "just is" and there is no reasoning for it?
Hey! first of all thank you for this video. Do you know any good sides from where I can revise for my a level exams? I have to resit maths this may june and I really need help, thank you!
Well explained! Do you have a contact email? I have some topics that I have some queries on! And also any revision sources for the GCSE legacy resit this may
Maths Genie also, are there any resources on: Ration notation, including reduction to its simplest form and fraction notation. Also, calculating the area of a compound shape made from triangles and rectangles.. thanks
MY O LEVEL MATH FINAL IS IN 30 MINUTES THANK YOU SO MUCH :D
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This was so helpful.. Thank you 😊
Thanks. It helped ❤️
Why does substituting -b into the equation give you the remainder? I get that if dividing by a factor you should get a remainder of 0, but I don't understand why you'd substitute -b to divide by (x + b).
For a better explanation of remainder theorem I recomend this video:
ruclips.net/video/MwG6QD352yc/видео.html
as, x+b=0
=)x=-b
exactly i dont get it
Thank it really help me
at 4 mins 10 seconds you say about subbing in -1, why?
(x+1) is a factor so you sub in the alternate sign so in this case (-1), this applies to all questions of that sort. For example if the factor was (x+3) then we would sub in (-3) instead of the x and if factor is for example (x-3) then sub in (3). If that makes sense :)
@@vseunos9261 Thank you. My question is more is there a rule I have to follow or is if just one of those things in maths that "just is" and there is no reasoning for it?
@@OptimusXZero bit late but I think it's because x+1=0 so when you subtract 1 from both sides (or swap the 1) it becomes x=-1
why do you have to do that tho
Respect 😌
Hey! first of all thank you for this video. Do you know any good sides from where I can revise for my a level exams? I have to resit maths this may june and I really need help, thank you!
haha not anymore. corona hopefully you get predicted grades which will be good enough! 😃
Adam I still have to, im gonna appear in oct instead of may!
Sana - oh no that’s a shame. Anyways sure you will do well 🤞
Thor Parker I’m sorry what is CAG? And yes I had my P4 maths on 22nd oct and it went horrible. But P1 wasn’t that bad
@@Sana-hg8ow hhh 😭&dd 😀$😀😀$re
Thx
Well explained! Do you have a contact email? I have some topics that I have some queries on! And also any revision sources for the GCSE legacy resit this may
+Boss Boss1 For the legacy resit use: www.mathsgenie.co.uk/oldgcse.html
Maths Genie thank you! You are amazing
Maths Genie also, are there any resources on: Ration notation, including reduction to its simplest form and fraction notation. Also, calculating the area of a compound shape made from triangles and rectangles.. thanks
The facta feowem😭
(Math genie 🧞♂️) 🤣🤣🤣🤣🤣
ur British luv