# Thread: solving for the solution question

1. ## solving for the solution question

as i return from vacation i forgot how to do this and i kinda lost my notes

"Solve for the solution of:"

$
y=x^2,
y=8-x^2
$

please show me step by step

2. Originally Posted by behindDkeys
as i return from vacation i forgot how to do this and i kinda lost my notes

"Solve for the solution of:"

$
y=x^2,
y=8-x^2
$

please show me step by step
Set them equal and solve for x

$x^2 = 8-x^2$ which cancels down to $x^2-4 = 0$

Solve using the difference of two squares

3. Originally Posted by e^(i*pi)
Set them equal and solve for x

$x^2 = 8-x^2$ which cancels down to $x^2-4 = 0$

Solve using the difference of two squares

oh yea and im gonna have answer of -2 and positive 2 now i remember

thanks