Answers

2014-08-05T20:37:42+08:00
(3ab - 2b^2)(2a^2 - 3ab) / [(3ab - 2a^2) / (2b^2 - 3ab)] = - (3ab - 2b^2)^2 (2a^2 - 3ab) / - (2b^2 - 3ab) = (at this point, we cancel the similar terms) = (3ab - 2b^2)^2
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2014-08-06T04:13:08+08:00