x cube - 2x square - x +2
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Answer:
FACTORISATION
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x³ - 2x² - x + 2
=> x²(x - 2) - 1(x - 2)
=> (x - 2)(x² - 1)
=> (x - 2){(x)² - (1)²}
=> (x - 2)(x - 1)(x + 1)
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