December 2018 1 11 Report
1)rozwiąż równania:
a) 2x²+8=0
b) 5(3-2x²)=15(x²-1)
2) rozwiąż nierówność:
a) x²+5x<0
b)x²-6x+9≤0
c)4x²+3x-1>0
d)-x²-4x+5≤0

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