1) х^3=-8
Х^3=(-2)^3
Х=-2
2)х^3=125
Х^3=5^3
Х=5
3)2х^3=-54
Х^3=-27
Х^3=(-3)^3
Х=-3
4)-0,5х^3=-4
Х^3=8
Х^3=2^3
Х=2
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Answers & Comments
1) х^3=-8
Х^3=(-2)^3
Х=-2
2)х^3=125
Х^3=5^3
Х=5
3)2х^3=-54
Х^3=-27
Х^3=(-3)^3
Х=-3
4)-0,5х^3=-4
Х^3=8
Х^3=2^3
Х=2