January 2019 0 18 Report
Rozwiąż nierówność ( parabole itd.)

a) x²-2x >3
b) (x+6)(x-2) <0
c) -y²+8y <15
d) 12y²-11y+2 <0
e) z²+4,8z-1 >0
f) -2z²+\frac{1}{2} z ≥ \frac{1}{4}
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