If `alphaa n dbeta` are the roots of `x^2-a(x+1)-b=0` then find the value of `1//(alpha^2-aalpha)+1//(beta^2-abeta)-2//a+bdot`

If alphaa n dbeta are the roots of this equation x^2-a(x-1)+b=0 then find the value of 1//(alpha^2-aalpha)+1//(beta^2-abeta)+2//a+bdot

If alpha and beta are the roots of x^(2)+6x-4=0 , find the values of (alpha-beta)^(2) .

If alpha and beta are the roots of x^(2)+6x-4=0 , find the value of (alpha-beta)^(2) .

If alpha and beta are the roots of 2x^(2) – 3x -4 = 0 find the value of 2 alpha^(2)+ beta^(2)

If alpha,betaa n dgamma are roots of 2x^3+x^2-7=0 , then find the value of sum(alpha/beta+beta/alpha) .

If alpha and beta are the roots of the equation 3x^(2) - 5x + 2 = 0 , then find the value of alpha^2beta + alphabeta^2 .