If alpha,beta be the zeroes of the quadr...

If `alpha,beta` be the zeroes of the quadratic polynomial `f(x)=x^(2)+px+45` and `(alpha-beta)^(2)=144`, then p is equal to

A

`p=pm12`

B

`p=pm16`

C

`p=pm18`

D

`p=pm14`

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