а) 5(x-8)-2(5+x) = 5x - 40 - 10 - 2x = 3x - 50
б) x(x^2+x-2)-x^2(x-1) = x^3 + x^2 - 2x - x^3 + x^2 = 2x^2 - 2x
а) 5(x-8)-2(5+x) = 5x - 40 - 10 - 2x = 3x - 50
б) x(x^2+x-2)-x^2(x-1) = x^3 + x^2 - 2x - x^3 + x^2 = 2x^2 - 2x