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If y= x+ (1)/(x) , x ne 0, then the e...

If ` y= x+ (1)/(x) , x ne 0,` then the equation ` ( x^2 - 3x +1) ( x^2 - 5x +1) = 6 x^2` reduces to

A

`y^2 - 8y + 7=0`

B

` y^2 + 8 y + 7=0`

C

` y^2 - 8y -9=0`

D

` y^2 -8y + 9=0`

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The correct Answer is:
D
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