Write the coefficient of x in the expansion of (x-2)³
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Answer:
the answer is -2)³
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Step-by-step explanation:
(a-b)^3=a^3-b^3-3ab(a-b)
(x-2)^3=x^3-8-6x(x-2)
=x^3-8-6x^2+12x
hence coefficient of x is 12
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