Question

Factor out the greatest common factor from - 12a - 8a

Answer 1

The given expression is

$-12a-8a^2$

The greatest common factor is

$-4a$

Now, we factor out the greatest common factor and we get the expression inside the parenthesis by division

$\begin{gathered} -\frac{12a}{-4a}=3 \\ -\frac{8a^2}{-4a}=2a \end{gathered}$

Hence, the final expression is C.

$-4a(3+2a)$