SOLUTION: Can you plase help pme factor 4a^2+12ab+9b^2-25c^2

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Question 257790: Can you plase help pme factor 4a^2+12ab+9b^2-25c^2
Answer by drk(1908) About Me  (Show Source):
You can put this solution on YOUR website!
Here is the original problem:
(i) 4a%5E2%2B12ab%2B9b%5E2-25c%5E2
look carefully, we really have this
(ii) 4a%5E2%2B12ab%2B9b%5E2-25c%5E2
which is the difference of two squares.
Factoring (ii), we get
%282a%2B3b%29%5E2 - %285c%29%5E2
factoring as a difference of two squares, we get
%282a%2B3b-5c%29%282a%2B3b%2B5c%29