Question

Ifα, β are the zeroes of the polynomial 2y^2+7y+5 then find the value of α+β+αβ

Answer 1

here, α+β = -B/A = -7/2
and, αβ = C/A = 5/2
so,
α+β+αβ = -7/2+5/2 = -2/2 = -1