Question

Разложите на многочлены 1) (2+x)^3; 2) (a-2)^3; 3) (5-b)^3; 4) (y+3)^3

Answer 1

1) (2+x)^3=8+12x+6x^2+x^3
2) (a-2)^3=a^3-6a^2+12a-8
3) (5-b)^3=125-75b+15b^2-b^3
4) (y+3)^3=y^3+9y^2+27y+27