November 2018 1 25 Report

Rozwiąż równanie:

1) - 3,5=- \frac{2}{7} x^{2}

2) -20=2x^{2} + 15x + 5

3) 12=-3x^{2} + 11x +4

4) 15=\frac{2}{5} x^{2} - x


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