You can put this solution on YOUR website!
You did the first step right--you factored out the common factor of 2:
However what remains is something with 4 terms that factors by "grouping." From the first two terms, take out an
, and from the last two terms, take out a 4.
At this point, I suspect that you copied the problem right. In order to factor by grouping, you MUST have a common factor after you do the grouping and factor as we did here. As you can see, this is NOT the case, because of the extra m in the first grouping. Let me suggest what I think the problem should have been:
Now you can take out the common factor, which is
Last, factor the
which is the difference of two squares:
R^2 at SCC