Question

Решите, пожалуйста.

Answer 1

$left { {{2x-6}leq0atop {x^2+7x+6>0}} right. \ \ left { {{2(x-3)}leq0atop {x^2+x+6x+6>0}} right. \ \ left { {{2(x-3)}leq0  atop {(x+1)(x+6)>0}} right. \ \ left { {{x}leq 3 atop {xin(-oo;-6)U(-1;+oo)}} right. \ \ otvet:xin(-oo;-6)U(-1;3]$