Question

Преобразуйте в многочлен
1) -5y(y+3)+(y-4)^2
2) 3(x-2)^2-3x^2

Answer 1

1) -5y(y+3)+(y-4)^2 = -5y² - 15y + y² -8y +16 = - 4y² - 23y +16
2) 3(x-2)^2-3x^2 = 3(x² -4x +4) -3x² = 3x² -12x +12 -3x² = -12x+12