# How do you factor completely # 2x^2 + 36x + 162#?

##### 1 Answer

Apr 25, 2016

See below..

#### Explanation:

When you factorise it, it should look like that:

But before you factorise, you should first find out what factors (a and b) of 81 that add to 18. In that case, 9 and 9 are the factors that add to 18 and multiply to 81.