Question

Factor 13x2 + 13x + 9x + 9 = 0​

Answer 1

Answer:

$\Large \boxed{x=\frac{-9}{13} \ \ \mathrm{or} \ \ x = -1}}$

Step-by-step explanation:

$13x^2 + 13x + 9x + 9 = 0$

Factor the expression.

$13x(x+1)+9(x+1)=0$

Take (x + 1) as a common factor.

$(13x+9)(x+1)=0$

Set factors equal to 0.

First possibility:

$13x + 9 = 0$

$13x=-9$

$\displaystyle x=\frac{-9}{13}$

Second possibility:

$x+1=0$

$x=-1$