April 2019 0 27 Report
Rozwiaz nierownosci kwadratowe:
 a.{x}^{2} + 1 > 0
b. {x + 3 < 0}
c. - {x}^{2} - 5 \leqslant 0
d. - {x}^{2} -4 \geqslant 0

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