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(3-2x-4)(3-2x+4)<0
(-2x-1)(-2x+7)<0
-2x-1=0. -2x+7=0
x=-1/2. x=7/2
HP:{x|-1/2
x/2+5>_9
x+10 >_ 18
x>_ 8
HP:{x|x>_8}
2<2-x/2_< 3
0< -x/2 _< 1
0< x _< -2
HP:{x|0
|x+5|_<|1-9x|
(x+5)kuadrat _< (1-9x)kuadrat
(x+5+1-9x)(x+5-(1-9x)_<0
(-8x+6)(10x+4)_<0
-8x+6=0. 10x+4=0
x=3/4. x=-2/5
HP:{x|x_<-2/5 atau x>_3/4 }
gini?