Answers

2014-08-22T11:12:40+08:00
(x-7)(x-7) = x^2 - 7x - 7x + 49
              = x^2-14x+49
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2014-08-23T00:03:27+08:00
X^2-14x+49 is my answer :) Just use the FOIL method to get the correct answer ^_^
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