Question

Solve for X
y=x-1
x-y^2=9

Answer 1

So far Ive done this...

x-(x-1)^2=9
then x-(x^2-2x+1)

Answer 2

=9

Answer 3

then i reduced it to 3x-x^2=8

Answer 4

yes
now combine like terms

-> -x^2+3x-1 = 9
set equal to zero, move to right side, better to have positive leading coefficient
-> x^2-3x +10 = 0
use quadratic formula

Answer 5

okay, but how do i find x from there?

Answer 6

i don't think this has real roots, the answer will have imaginary numbers

Answer 7

so it has no solution

Answer 8

yeah

Answer 9

okay thanks

Answer 10

practice using the quadratic formula so you can do it on your own next time
\[x = \frac{-b \pm \sqrt{b^{2}-4ac}}{2a}\]

Answer 11

thank you!!