SOLUTION: Please help me with this problem, im stuck. Factor completely. 4a^2 + 12ab + 9b^2 - 25c^2

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Question 109249: Please help me with this problem, im stuck.
Factor completely.
4a^2 + 12ab + 9b^2 - 25c^2

Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
4a^2 + 12ab + 9b^2 - 25c^2
4a(a+3b) + [(3b-5c)(3b+5c)]
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Cheers,
Stan H.

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