If p + iq be one of the roots of the eq...

If p + iq be one of the roots of the equation ` x^(3) +ax +b=0` ,then 2p is one of the roots of the equation

`x^(3) +ax + b =0`

` x^(3) -ax -b=0`

`x^(3)+ax -b=0`

`x^(3)+bx+a=0`

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