Answers

2016-02-09T17:02:18+05:30
15(x-2y)²-8(x-2y)-16

let (x-2y)=a

=15a²-8a-16
=15a²-20a+12a-16
=5a(3a-4)+4(3a-4)
=(5a+4)(3a-2)
=(5(x-2y)+4)(3(x-2y)-4)
=(5x-10y+4)(3x-6y-4) is the ans.

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2016-02-09T19:11:29+05:30
Please see the attachment.
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