Question

(2x – 1) (x + 2) (x – 1) <0

Answer 1

Ответ:

$(2x-1)*(x+2)*(x-1)<0$

$\left \{ {{(2x-1)*(x+2)<0} \atop {x-1>0}} \right.$

$\left \{ {{(2x-1)*(x+2)>0} \atop {x-1<0}} \right.$

x ∈ ( -∞, -2 ) ∪ ( $\frac{1}{2}$ , 1)