Question

x2 + 8x + 9 = -7

Answer 1

Factors into:
(x+4)(x+4)

First add 7 to both sides giving you:
x^2+8x+16=0

Answer 2

But im doing Quadatic fomulas

Answer 3

Do you know the formula?

Answer 4

no

Answer 5

im stuck on it

Answer 6

\[\frac{-b \pm \sqrt{b^2-4ac}}{2a}\]

Answer 7

i know that ax+bx+c=0 but how do i put the equation into that formula

Answer 8

correction arock

Answer 9

the equations and letters go together:
x^2+8x+16=0
1=a
8=b
16=c

Answer 10

its ax^2+bx+c=0

Answer 11

but the equation is x^2+8x+9=-7 so i have to solve it fist?

Answer 12

Yes
after solving u get wat Luigi got!!

Answer 13

ok