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Question

The value of 9x224xy+16y23x4y is

A
3x + 4y
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B
3x - 4y
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C
4x - 3y
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D
4x + 3y
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Solution

The correct option is B 3x - 4y
Given,
9x224xy+16y23x4y

(3x4y)2(3x4y)

Since we know

(ab)2=a2+b22ab

3x4y
Hence option B is correct.

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