Factorize x² + x − 2?
- (x + 2)(x − 1)
- (x + 1)(x − 2)
- (x − 2)(x − 1)
- None of these
Explanation
We need two numbers that multiply to -2 and add to +1 → 2 and -1
x² + x − 2 = x² + 2x − x − 2
= x(x + 2) − 1(x + 2)
= (x + 2)(x − 1)
Last verified on 16-06-2026
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