SOLUTION: Factor completely. 49b^2-9=

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Question 229353: Factor completely. 49b^2-9=
Answer by chibisan(131) About Me  (Show Source):
You can put this solution on YOUR website!
since 7^2 = 49 and 3^2 = 9 and using (a+b)(a-b)=a^2-b^2
(7b+3)(7b-3)