The polynomial can be factorised as

MATHEMATICS · Single correct · A Level · Mathematics · Algebra and Functions · Algebra and Functions

Problem

The polynomial x3+2x2−x−2x^{3}+2x^{2}-x-2 can be factorised as (a) (x+2)(x2+1)(x+2)(x^{2}+1) (b) (x−1)(x2+2)(x-1)(x^{2}+2) (c) (x+2)(x2−1)(x+2)(x^{2}-1) (d) (x−2)(x2+1)(x-2)(x^{2}+1)

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