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Question

The sum of all real values of x satisfying the equation (x25x+5)x2+4x60=1 is:


A

-4

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B

6

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C

5

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D

3

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Solution

The correct option is D

3


x25x+5=1x=1,4or x25x+5=1x=2,3or x2+4x60=0x=10,6

x=3

will be rejected as L.H.S. becomes –1

So, sum of value of x = 1 + 4 + 2 – 10 + 6 = 3


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