Question

 Решите уравнение
x^3+x^2 -4x-4=0

Answer 1

$x^3+x^2-4x-4=0\ x^2(x+1)-4(x+1)=0\ (x+1)(x^2-4)=0\ (x+1)(x-2)(x+2)=0\ x=-1 x=2 x=-2$