(4/x-4+1/2-x)x+4x+4/3

Question

(4/x-4+1/2-x)x+4x+4/3

Answer 1

(4/x-4+1/2-x)x+4x+4/3=4x/x - 4x + x/2 - x^2 + 4x + 4/3 = 4x/x + x/2 - x^2 + 4/3 = (16x + 2x^2 - 4x^3 + 3x)/4x = (x(19 + 2x - 4x^2))/4x = (12 + 2x - 4x)/4