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If G and L are the greatest and least va...

If G and L are the greatest and least values of the expression `(x^(2)-x+1)/(x^(2)+x+1), x epsilon R` respectively then
`G` and `L` are the roots of the equation

A

`3x^(2)-10x+3=0`

B

`4x^(2)-17x+4=0`

C

`x^(2)-7x+10=0`

D

`x^(2)-5x+6=0`

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