Factoring 12m^2n^2-8mn+1=

asked Apr 16, 2015 180k views

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$First \ write\ as \ 4\ terms:\\\\ -8mn=-6mn-2mn \\\\12m^2n^2-8mn+1=12m^2n^2-6mn-2mn+1=\\6mn(2mn-1)-1(2mn+1)=(6mn-1)(2mn-1)$

Piwo answered Apr 18, 2015

by Piwo

6.9k points

2 votes

$12m^2n^2-8mn+1=12m^2n^2-2mn-6mn+1=\\\\=2mn\cdot6mn-2mn\cdot1-1\cdot6mn-1\cdot1=\\\\=2mn(6mn-1)-1(6mn-1)=(6mn-1)(2mn-1)$

Liudi Wijaya answered Apr 20, 2015

7.4k points

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