Преобразуйте в многочлен
(x--8)(x+5)
(x+6)^2
(3y--2)(3y+2)

(x--8)(x+5) == x^2 + 5x - 8x - 40 = = x^2 - 3x - 40 (x+6)^2 = = x^2 + 2*x*6 + 6^2 = = x^2 + 12x + 36 (3y--2)(3y+2) == 9y^2 + 6y - 6y - 4 = = 9y^2 - 4--------------------------------------