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Question

Use remainder theorem to find the remainder when f(x)=3x2+4x11 is divided by (x1).

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Solution

Given, f(x)=3x2+4x11.

Here, f(x) is divided by (x1).

Now, according to the remainder theorem, when f(x) is divided by (x1), then the remainder is f(1).

Then,
f(1)=3(1)2+4(1)11
=3+411=4.

Hence, the remainder obtained is 4.

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