Posted by MissPatte on Wednesday, July 2, 2014 at 4:28pm.
This is giving me a lot of trouble.
Factoring Differences of Squares
Factor Completely
988w^2
and can you explain how you got the common factor if there is one please

Algebra  Steve, Wednesday, July 2, 2014 at 5:19pm
just recall that a^2b^2 = (ab)(a+b)
So, first, make sure that both terms are perfect squares.
In this case, they are not. However, if you factor out a 2, you have
2(494w^2)
49 is 7^2 and 4w^2 = (2w)^2. So, we now have
2(72w)(7+2w)