September 2018 1 20 Report

Rozwiąż nierówność -

a)3x² + 14x - 5 ≥0

b)-2x²-7x+4≤0

c)3x²+3x+1<0

d)x²+x-1>0

e)3x-x²≤3-3x²

f)-x(2-x)>1-x²


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