Question

(x+3)^3-(x+3)^2*x+3(x+3)=0

Answer 1

X^2(x-3) -(x-3)=0

(X^2-1)(x-3)=0

X=1

X=-1

X=3

Answer 2

3(x+3)-x(x+3)^2+(x+3)^3=0

3x^2+21x+36=0

3(x+3)(x+4)=0

x+3=0 x+4=0

x=-3 и x=-4

ответ и есть