September 2018 1 28 Report
Nierówności kwadratowe.
a) -x²+16>0
b) 1/9x²-4≤0
c) ½x²-5x<0
d) -x²+4x<0
e) -3(x-2)(x+4)≤0
f) -5(x-2)(x+1)>0
g) x²-8x+15<0
h) x²+12x>-24
i) x²-5x-104<0
j) x²<-4(x+1)

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