Question

Factor 9b2 - 4.

Answer 1

Hoot! You just asked your first question! Hang tight while I find people to answer it for you. You can thank people who give you good answers by clicking the 'Good Answer' button on the right!

Answer 2

This is a difference of squares, the property that deals with this kind of factorization is : a^2-b^2=(a+b)(a-b). In this case 9b is already squared, but 4 is not. But if we think of 4 as 2^2 then this property can work. So the answer will be (9b+2)(9b-2)