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Question

The polynomial P(x)=4x3+7x25x+t, when divided by x+1 gives 3 as the remainder.
Find the value of ‘t’.


A

-3

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B

-4

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C

-5

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D

-6

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Solution

The correct option is C

-5


The remainder when P(x) is divided by x+1 is 3,
P(1)=3
4×(1)3+7×(1)25x(1)+t=3
4×1+7×1+5+t=3
4+7+5+t=3
8+t=3
t=5


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