Algebra Substitution - GCSE Maths

In this video, we learn how to substitute values into algebraic expressions. We start off with basic examples and progressively go to more complex demonstrations.

We hope you learn a thing or two by watching this video. Let me know if you have any questions by writing them in the comments below.

#substitution
#algebra
#gcse
#gcsemaths
#maths
#math
#mathematics

[poshhgod]

ty! i have exam on monday and like this helped me <3

[tracey]

My math teacher is always in a rush so i never really understand anything but the way you explained this was so easy to understand

Thank you :)

[lunaride]

Thanks so much I have an exam tomorrow and this helped me so much ur explanation is clear

[Zoe.Meletiou]

Oh my goodness thank you so much you literally helped me so much I understand all of it now I really appreciate it

[Aarya-ebcw]

Thank you so much! Quick question how did the 18 turn positive instead of negative? ❤

[Ultnn]

Thanks helps better than my own maths teacher

[MrGreensweightHist]

Always include () to encompass the coefficient when doing this.

2x²-3x+5
after substitution should be,
(2(-3²))-(3*-3)+5
not
2(-3²)-3(-3)+5
This would made a MAJOR difference if the subtraction sign were a division sign instead.

[mahejabeenzehraabedi]

Hi. Thank you for the video. Please help me understand how the -3 raised to the power of 2 became positive?

[faustinamensah]

What about
When m=2 n=5
Find 24m-5mn+mn

[danielessel]

How can I solve an expression like this:1/2 × y when y= -5?

[magdalenahashipala]

I missed a day of school 😅and I panicked buf this video helped me so much thx❤😊

[primejaydenwasop]

ab+3a-7a+9ab A=4 and B=-2 whats the answer ?

[chocopie]

i am stuck on this question:
Substitute the given values into each formula to determine the value of d, if d=g-2
yeah i am dumb

[adwoaasantewaaawuah]

Why did the eighteen become positive instead of negative

[Charles___]

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