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Question

Using division algorithm, find the quotient and remainder on dividing f(x) by g(x) where f(x)=6x3+13x2+x2 and g(x)=2x+1.

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Solution

Given, f(x)=6x3+13x2+x2
and g(x) = 2x + 1,
f(x)÷g(x)2x+1)¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯6x3+13x2+x2(3x2+5x2
6x3+3x2

–––––––––––––––––––
10x2+x2
10x2+5x

¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
4x2
4x2
+ +
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
0
quotient =3x2+5x2, remainder = 0

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