February 2019 0 8 Report
Rozwiąż nierówności
zad1
a)2x²-4x>0
b)-x²+2x+4≤0
c)x²-3x(x-1)<2(x-1)(x+1)-4c
zad2
a)x²-9<0
b)-2x²+6x-3>0
c)x²+3(2x+3)≤(2x+1)²
zad3
a)-3x²+x>0
b)-x²+4x+3≥0
c)(x+2)²<(x+2)(3x-4)
zad5
a)x²-4≤0
b)2x²+2x-5>0
c)7-x(5x+2<3-x(4-x)

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