solved thanks

[grave crane]

There are 3 variables, I simplified the equation but I don't get why a = b**2??, what are the workings of the answer??

Link to paper: https://bestexamhelp.com/exam/cambridge-igcse/mathematics-0580/2017/0580-s17-qp-43.php qs 7b)

[thick herald]

$x^{2}-12x+a=x^{2}+2xb+b^{2}$

[twilit smelt]

Combustion

[thick herald]

the coefficients should be equal

so 2b = -12, b^2 = a

[grave crane]

yeah I did that but then how is a=b**2 ?

[thick herald]

do you see any other constant on either side of the equation?

[grave crane]

x**2 cancels, so wont it be 2xb = -12x?

[thick herald]

aka 2b = -12

[grave crane]

ohhhh

ok

and then/

?

[thick herald]

.

[grave crane]

only a and b and sicne a = b**2 it will be -6^2 = 36

[thick herald]

yeah that's all

[grave crane]

bruh thanks you so much it was that easy

[thick herald]

[grave crane]

do i delete this forum?

like thia channel

[thick herald]

don't know lol

[grave crane]

How do I set it as solved"

nvm

[whole ibex]

solved thanks

[grave crane]

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