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Question

If x+y = 2, then the value of (x3+y3+6xy) is ?


A

8

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B

1

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C

27

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D

Can't be determined

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E

None of these

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Solution

The correct option is A

8


(x+y)3=x3+y3+3xy (x+y)

23=x3+y3+3xy(x+y)

8=x3+y3+6xy


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