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

Question

2342 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-06-16T10:31:40

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

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

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

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

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

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