Answers

2014-07-04T00:59:26+08:00
 (3x-5) (3x+5) = 9x^2-25 
-Differences of 2 squares

 (3m^6+3/4n^8) (3m^6-1/4^8) = 9m^12- \frac{9n^{16} }{16}
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