Answers

2015-09-20T18:36:19+05:30
It is of the form a^2 -b^2 It's solution is (a+b) (a-b) Therefore it is (5m+11n) (5m-11n).
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2015-09-20T23:42:36+05:30
25m^2-121n^2
(5m)^2-(11n)^2
or,
(5m-11n)(5m+11n)
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