Question

X^2+7x+9=0 Quadratic formula to solve each equation

Answer 1

The formula for the quadratic formula is

\[\frac{ -2\pm \sqrt{b ^{2}-2(a)(c)} }{ 2(a) }\]

\[\frac{ -7\pm \sqrt{7^{2}-2(1)(9)}}{2*1}\]

Answer 2

The "-2" should be "-b"

Answer 3

could you crow for me how you did that

Answer 4

\[\frac{ -b \pm \sqrt{b ^{2}-2(a)(c)} }{ 2a }\]

So that is your equation you will be using.

You are given X^2+7x+9=0

So a=1, b=7, and c = 9
You get these numbers by ignore the X^2 and X