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Question

Apply division algorithm to find the quotient q(x) and remainder r(x) on dividing f(x)=10x4+17x362x2+30x3 by g(x)=2x2x+1

A
quotient 5x2+11x28 and remainder 9x+25
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B
quotient 5x211x28 and remainder 9x+25
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C
quotient 5x2+11x28 and remainder +9x+25
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D
quotient 5x2+11x28 and remainder 9x25
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Solution

The correct option is B quotient 5x2+11x28 and remainder 9x+25
So, quotient q(x)=5x2+11x28 and remainder r(x)=9x+25.
Now, dividend = Quotient × Divisor + Remainder
=(5x2+11x28)(2x2x+1)+(9x+25)
=10x45x3+5x2+22x311x2+11x56x2+28x289x+25
=10x4+17x362x2+30x3
Hence, the division algorithm is verified.

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