12-2(x-1)^2=4(x-2)-(x-3)(2x-5)
12-2(x^2-2x+1)=4x-8-(2x^2-5x-6x+15)
12-2x^2+4x-2=4x-8-2x^2+5x+6x-15
10-2x^2+4x=15x-2x^2-23
-2x^2+2x^2+4x-15x=-23-10
-11x=-33
x=3
…
5(x+3)\geq8(10-x)
5x+15\geq80-8x
5x+8x\geq80-15
13x\geq65
x\geq5
…
3x+(x+2)^2<x(x-4)-7
3x+x^2+4x+4<x^2-4x-7
7x+x^2-x^2+4x<-7-4
11x<-11
x<-1
…
(x+5)(x+2)-(x-5)^2< 3(4x-3)-46
x^2+2x+5x+10-(x^2-10x+25)<12x-9-4
x^2+7x+10-x^2+10x-25<12x-13
17x-15<12x-13
17x-12x<-13+15
5x<2
x<0,4
…
|x+1|=5
x+1=5 lub x+1=-5
x=5-1 lub x=-5-1
x=4 lub x=-6
…
2|x-1|=6
2(x-1)=6 lub 2(x-1)=-6
2x-2=6 lub 2x-2=-6
2x=6+2 lub 2x=-6+2
2x=8 lub 2x=-4
x=4 lub x=-2
…
|x-1|\leq1
x-1\leq1 lub x-1\geq-1
x\leq1+1 lub x\geq-1+1
x\leq2 lub x\geq0
x należy do <0,2>
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