Question

Solve x2 - 7x = -13.

Answer 1

x squared?

Answer 2

So first, rewrite it as a quadratic

Answer 3

So: x^2 - 7x + 13 = 0

Answer 4

then try to factor or use the quadratic formula

Answer 5

how do i know what is a b and c?

Answer 6

@Nairz

Answer 7

\(\color\red{a}x^2 + \color\green{b}x + \color\orange{c} = 0\)

\(\color\red{1}x^2 + \color\green{-7}x + \color\orange{13} = 0\)

Answer 8

i think its either a or b

Answer 9

Please show your work

Answer 10

Did you use this formula:

\(x = \dfrac{-b \pm \sqrt{b^2 - 4ac}}{2a}\)