Question

What is the GCF of -2xy and -9y

Answer 1

`- y(2x + 9)`

Explanation:

The GCF doesn't have to be a number. In this case, it is -y because both the -2xy and -9y share it. It's also easier when you take out a negative. Once you take the GCF out, your new expression should be:

`- y(2x + 9)`