SOLUTION: please help solve factor each polynomial 1) 9-a^2+2ab-b^2 2) 64m^2-25n^2

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Question 65034: please help solve
factor each polynomial
1) 9-a^2+2ab-b^2
2) 64m^2-25n^2
Answer by 303795(595) About Me  (Show Source):
You can put this solution on YOUR website!
9-a%5E2%2B2ab-b%5E2
9-%28a%5E2-2ab%2Bb%5E2%29
3%5E2-%28a-b%29%5E2%29
ie A difference of squares.
%283-%28a-b%29%29%283%2B%28a-b%29%29%29
%283-a%2Bb%29%283%2Ba-b%29%29

64m%5E2-25n%5E2
%288m%29%5E2-%285n%29%5E2
ie A difference of squares.
%288m-5n%29%288m%2B5n%29