If alpha and beta are the zeros of the polynomial 3/2x^2+9x^2- 15 then find the 1/ alpha +1/beta

If alpha and beta are the zeros of the polynomial 3/2x^2+9x^2- 15 then

1.	If alpha and beta are the zeros of the polynomial 3/2x^2+9x^2- 15 then find the 1/ alpha +1/beta
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