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Question

What must be subtracted from (4x33x+5) to get (2x23x3+5x2) ?


A

x32x28x+7

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B

7x3+2x28x+7

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C

7x32x28x+3

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D

7x32x28x+7

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Solution

The correct option is D

7x32x28x+7


Let's take the unknown expression to be p(x).
So, (4x33x+5)p(x)
=(2x23x3+5x2)
p(x)=(4x33x+5)
(2x23x3+5x2)



4x33x+5
3x3+5x2+2x2

(+) () (+) ()
________________________
7x38x+72x2


p(x)=7x32x28x+7


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