If alpha, beta, gamma are the zeros of t...

If `alpha, beta, gamma` are the zeros of the polynomial `f(x) = ax^(3) + bx^(2) + cx + d` then `(alpha)^2 + (beta)^2 + (gamma)^2` = ………….

`(b^(2) + 4ac)/(2)`

`(b^(2) - 2ac)/(a^2)`

`(b + 2ac)/(a^2)`

none

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