Question

use the quadratic formula to solve each equation.
3x^2+39x+108=0

Answer 1

x=-9,-4

Answer 2

When you simply the equation further, you get :
\[x ^{2} + 13x + 36 = 0\]

Assuming you know the quadratic formula :
a = 1
b = 13
c= 36
\[\frac{ -13 \pm \sqrt{169 - 4 \times 1 \times 36} }{ 2\times 1}\]
Can you solve it now?

Answer 3

yeah thank you!