SOLUTION: I need help on this please!! Completely factor the following expression: 36y^2 � z ^2 Any help would be greatly helpful!!

Question 612391: I need help on this please!!
Completely factor the following expression: 36y^2 � z ^2
Any help would be greatly helpful!!
Found 2 solutions by nerdybill, vleith:
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
think "difference of squares"
36y^2 � z^2
can be rewritten as:
(6y)^2 � z^2 (now, it is a difference of squares)
factoring:
(6y-z)(6y+z)

Answer by vleith(2983) (Show Source): You can put this solution on YOUR website!
Factoring the difference of 2 squares is something you will need to be able to do. Those type of problems come up a lot
In general
is a difference of 2 squares. Where one term is 6y and the other is z

there you go
Often you will be given term that are higher order, for example

And you can see that first term is still a difference of 2 squares so it can be factored again. So keep your eye open for that
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