What is (2+y)³ written out?
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(2+y)3
= ((2+y)x(2+y))x(2+y)
= (4+4y+y2) x (2+y)
= 8 + 8y + 2y2 + 4y + 4y2 + y3
= y3 + 6y2 + 12y + 8
Mar 8, 2015 5:44:24 PM