(x + 2) * x * (x - 1) * (x + 2) < 0
(x+2)*x*(x-1)*(x+2)<0<br>x=-2 x=0 x=1 + + - + ------- -2 ----------- 0 ---------- 1 --------------- \\\\\\\\\\\\ x= 2 + + + + | + x=0.5 + + - + | - x= -1 + - - + | + x= -3 - - - - | + x∈(0; 1)