SOLUTION: factor completely 9-49z^2
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Question 321934: factor completely 9-49z^2
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
9-49z^2
This is of the type a^2-b^2 = (a+b)(a-b)
(3)^2-(7z)^2
(3+7z)(3-7z)
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