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If alpha and beta are the roots of the e...

If `alpha` and `beta` are the roots of the equation `4x^(2)+2x-1=0`, then which one of the following is correct?

A

`beta = -2alpha^(2) -2alpha`

B

`beta = 4alpha^(2) -3alpha`

C

`beta =alpha^(2) -3alpha`

D

`beta = -alpha - 1/2`

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