August 2018 1 13 Report
Rozwiaz równania i nierówności:
a) x²+6x+9=0
b) 3x²+2x-2=0
c) 2x=5x²+1
d) -x²+2x+24<0
e) x²-4x+8≤0
f) 3x+7≥4x²
g) |5x+2|=2
h) 5-2|x+1|=3
i) |x-3|≤4

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