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Question

Find the remainder when x3−2x2+6x is divided by x−2.

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Solution

Let p(x)=x3−2x2+6x and q(x)=(x−2)

According to remainder theorem, remainder is equal to p(a) when p(x) is divided by (x−a).

p(2)=23−2(2)2+6(2) = 2323+12 = 12

Therefore, remainder is equal to 12 when p(x)=x3−2x2+6x is divided by (x−2).


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