factorise x minus 1 whole cube minus 1
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Answer:
(x - 2)(x² - x + 1)
Step-by-step explanation:
(x - 1)³ - 1
=> (x - 1)³ - (1)³
=> {(x - 1) - 1}{(x - 1)² + 1(x - 1) + 1²}
=> (x - 2)(x² - 2x + 1 + x - 1 + 1)
=> (x - 2)(x² - x + 1)
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