Which of the following is a true statement?

If α, β be the zeros of the polynomial 2x² + 5x + k such that then k = ?

One dividing a polynomial p(x) by a nonzero polynomial q(x), let g(x) be the quotient and r(x) be the remainder then p(x) = q(x) g(x) + r(x), where

Zeros of p(x) = x² – 2x – 3 are

If α, β, γ are the zeros of the polynomial x³ – 6x² – x + 30 then the value of (αβ + βγ + γ α) is