SOLUTION: r^2-49

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Question 349203: r^2-49
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
I'm assuming you need it factored.
r^2-49
.
Can be rewritten as:
r^2-7^2
Now, it is a "difference of squares"
which factors out as:
(r+7)(r-7)