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Question

Using the remainder theorem, find the remainder, when p(x) is divided by g(x), where
(px)=x32x28x1,g(x)=x+1

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Solution

p(x)=x32x28x1g(x)=x+1

By remainder theorem, when p(x) is divided by ( x+1), then the remainder = p(1).

Putting x = -1 in p(x), we get

p(1)=(1)32(1)28(1)1=12+81=4

∴ Remainder = 4

Thus, the remainder when p(x) is divided by g(x) is 4.


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