If `alpha, beta` are the roots of the equation `2x^2+5x+3=0`, then find the value of `beta/alpha + alpha/beta`.

If alpha and beta are the roots of the equation 2x^2+3x-6 then find the value of alpha^2+beta^2

If alpha and beta are the roots of the equation 3x^(2)+7x+3=0 Find the value of alpha beta:

If alpha and beta are the roots of the equation x^(2) -x+7=0 , then find the value of alpha^(2) + beta^(2) .

If alpha,beta are roots of the equation x^(2)-px+q=0, then find the value of (i)alpha^(2)(alpha^(2)beta^(-1)-beta)+beta^(2)(beta^(2)alpha^(-1)-alpha)

If alpha and beta are the roots of the equation x^(2) - 2x + 4 = 0 , then what is the value of alpha^(3) + beta^(3) ?