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|2x-1|=5
2x-1=5 lub 2x-1=-5
2x=6 lub 2x=-4
x=3 lub x=-2
f. 1/7*pierw(3x+2)^2=2
1/7*|3x+2|=2/*7
|3x+2|=14
3x+2=14 lub 3x+2=-14
3x=12 lub 3x=-16
x=4 lub x= -5 i 1/3