Answers

2015-08-30T11:37:41+05:30
May be it is 4a^2- 9a^2- 2a -3b = 4a^2- 2a - 9b^2- 3b = 2a(2a- 1) - 3b(3b- 1) = (2a -1)(3b-1)(2a-1).
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How can 2a (2a-1) -3b (3b-1)= (2a-1)(3b-1)(2a-1) ?
Sorry that`s wrong.How can i delete my answer.
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2015-08-30T15:28:38+05:30
4a^2- 9b^2 -2a -3b
=(2a)^2 -(3b)^2 -(2a+3b)
=(2a+3b)(2a-3b) -(2a+3b)
=(2a+3b)[(2a-3b)-1]
=(2a+3b)(2a-3b-1)
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