If α and β are zeroes of polynomial 2x^2+ 5x + k such that α^2 +  β^2 + αβ = 21/4 then k = ? (A) 3 (b) -3 (C) -2  (D) 2

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If α and β are zeroes of polynomial 2x+ 5x + k such that α2 +  β2 + αβ = 21/4 then k = ?

(A) 3

(b) -3

(C) -2

(D) 2

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