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Question

Solve : x+1x1x1x+1=56,x{1,1}

A
5,15
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B
5,15
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C
5,15
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D
None of these
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Solution

The correct option is B 5,15
Given equation is:
x+1x1x1x+1=56

On simplifying, we get
(x+1)2(x1)2x21=56
6(2x)(2)=5x25
5x224x5=0
5x225x+x5=0
(5x+1)(x5)=0
x=15,5.

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