# How do you factor and solve (a+1)(a+2) = 0?

Jun 16, 2016

$a = - 1$ or $a = - 2$.

#### Explanation:

$\left(a + 1\right) \left(a + 2\right) = 0$ is already factorized into $\left(a + 1\right)$ and $\left(a + 2\right)$.

As product of $\left(a + 1\right)$ and $\left(a + 2\right)$ is zero, it means

either $a + 1 = 0$ or $a + 2 = 0$

i.e either $a = - 1$ or $a = - 2$.