[" 12.If "a,beta" are zeros of poly "P(x)=2x^(2)+5x+k" .Satisfying the relation "a^(2)+beta^(2)+a beta=(21)/(4)],[" then find the value of "k" for this is to be possible."]

If alpha and beta are the zeros of the polynomial f(x)=2x^(2)+5x+k satisfying the relation alpha^(2)+beta^(2)+alpha beta=(21)/(4) ,then find the value of k for this to be possible.

If alpha and beta are the zeros of the polynomial f(x)=2x^2+5x+k satisfying the relation alpha^2+beta^2+alphabeta=(21)/4 , then find the value of k for this to be possible.

If alpha and beta are the zeros of the polynomial p(x) = 2x^(2) + 5x + k satishfying the relation alpha^(2) + beta^(2) + alpha beta = 21/4 then k = …………

If alpha,beta be the zeroes of the polynomial 2x^(2)+5x+k such that alpha^(2)+beta^(2)+alphabeta=(21)/(4) , then k=?

If alpha, beta be the zeros of the polynomial 2x^(2)+5x+k such that alpha^(2)+beta^(2)+ alpha beta = (21)/4 then k= ?

If alpha,beta are zeroes of the quadratic polynomial p(x)=2x^(2)-Kx+7 such that alpha^(2)+beta^(2)-(1)/(2)alpha beta=(23)/(2). Find the value of K

If alpha and beta are zeros of p(x) = x^2 + x - 1 , then find alpha^(2)beta + alphabeta^(2) .

If alpha and beta are the zeros of the quadratic polynomial f(x)=kx^(2)+4x+4 such that alpha^(2)+beta^(2)=24, find the value of k

If alpha and beta are the zeroes of the polynomial 2x^(2)-4x+5 find the value of alpha^(2)+beta^(2)

If alpha and beta are zeroes of x^(2)-5x+6 , then find the value of alpha^(2)+beta^(2) .