X(x+2)(x-2)-(x-3)(x`2+3x+9)
1) X*(X +2)*(X - 2) = X*( X^2 - 4) = X^3 - 4X 2) (X - 3)*( X^2 + 3X + 9) = X^3 - 27 3) X^3 - 4X - X^3 + 27 = 27 - 4X 5) при X = 1\4 27 - 4 * 1\4 = 27 - 1 = 26 ОТВЕТ: 26
Х(х^2-4)-(x^3-27) x^3-4x-x^3+27 -4x+27 при х =1/4 -4*1/4+27=26 отв:26