SOLUTION: Is 4x^2 � 16 the difference of two squares? Is so, how does it factor?

Question 478912: Is 4x^2 � 16 the difference of two squares? Is so, how does it factor?
Found 2 solutions by Earlsdon, cleomenius:
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
is the difference of two squares.
In general, these will factor as follows:
so, in this problem we get:
=
Answer by cleomenius(959) (Show Source): You can put this solution on YOUR website!
Yes it is.
4x^2 - 16 = (2x)^2 - 4^2 = (2x + 4) (2x - 4).
Cleomenius.