1) ОДЗ: x≠ -1
(x-3)(2x+4)(x+1)≥0
(x-3)*2(x+2)(x+1)≥0
(x-3)(x+2)(x+1)≥0
x=3 x= -2 x= -1
- + - +
--------- -2 --------- -1 -------------- 3 ------------
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x∈[-2; -1)U[3; +∞)
2) ОДЗ: x≠3
(2x+1)(x+2)(x-3)<0<br>2(x+0.5)(x+2)(x-3)<0<br>(x+0.5)(x+2)(x-3)<0<br>x= -0.5 x= -2 x=3
- + - +
--------- -2 -------------- -0.5 ------------ 3 -------------
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x∈(-∞; -2)U(-0.5; 3)