Question

solve x^2+9x+9=0

Answer 1

\[x^2+9x+9=0\]
a = 1, b = 9, c = 9
\[x = \frac{-b \pm \sqrt{b^2-4ac}}{2a}\]
\[x = \frac{-9 \pm \sqrt{81-36}}{2}\]
\[x = \frac{-9 \pm \sqrt{45}}{2}\]