January 2019 1 10 Report
Rozwiąż nierówność ( potrzebuje na jutro proszę):
a)-2x+6x²-9/2<0
b)-3x²+2x-1/3<0
c)x²+2x+2>0
d)-9x²+2x-1/9<0
e)2x²-x+1/2<0
f)-4x²+12x-9>0
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