alleryFactor x³ + 2x² − x − 2 completely.
A(x+1)(x²+x−2)
B(x−2)(x+1)²
C(x−1)²(x+2)
D(x−1)(x+1)(x+2)
Answer & Solution
Correct answer: D. (x−1)(x+1)(x+2)
Grouping gives (x²−1)(x+2)=(x−1)(x+1)(x+2).
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