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ACT Prep - Algebra #2
供稿人: Helfenbein
hint: foil the (x+1)(x+4) first
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What is the Product
of (x+1)(x-1)(x+2) ?
A.   x3+2x2-x-2
B.   x3-2
C.   x3+x2-2
D.   x3+2x2+x-2
hint: the 4 is the denominator for BOTH terms
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hint: Factor x2 - 16 then cancel.
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