Math, asked by talib4, 1 year ago

factorise 4(y2-1)2 -15(y2-1) -4

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Answered by Nahor

5

4(y4-2y2-1)-15y2+15-4
=4y4-8y2-4-15y2+11
=4y4-23y2+7

Nahor: Wlcm

Nahor: plz mark me as brainliest

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