lim x -> 2 x^3 -4x / x-2

lim x - > 2 x^3 -4x / x - 2 = lim x - >2 x(x^2-4) / x-2 = lim x - > x(x-2)(x+2) / x-2 = lim x - > 2 x(x+2) = 2 (2+2) = 8