September 2018 1 12 Report

Rozwiąż nierówności

a)4|x|-|x|³≤0

b)9|x|³-|x|≥0

c)|x-2|³-4|x-2|²

d)|x³+8|≤3x²-6x+12

e)|(x²-9)(x²-25)|>0


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