(1):|3-2x|<1(1):|3-2x|<1 (2)x平方+7x+12≥0
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(1):|3-2x|<1(1):|3-2x|<1(2)x平方+7x+12≥0(1):|3-2x|<1(1):|3-2x|<1(2)x平方+7x+12≥0(1):|3-2x|<1(1):|3-2x|<1
(1):|3-2x|<1(1):|3-2x|<1 (2)x平方+7x+12≥0
(1):|3-2x|<1
(1):|3-2x|<1 (2)x平方+7x+12≥0
(1):|3-2x|<1(1):|3-2x|<1 (2)x平方+7x+12≥0
|3-2x|<1
-1<3-2x<1
1<x<2
2x
(x+2)(x+5)≥0
x≤-5或者x≥-2
-1<2x-3<1
1
3-2X<1
3-2X>-1
就得1< x
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