multiply :
(x²-x+1)(x²-x-1)
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Answer:
x⁴ - 2x³ - x² - 1
Step-by-step explanation:
it is in the form (a + b)(a - b) = a² - b²
=> [(x²- x) + 1] [(x² - x) - 1]
=> (x² - x)² - 1²
=> x⁴ - x² - 2 × x² × x - 1
=> x⁴ - 2x³ - x² - 1
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