October 2018 1 31 Report

1. Rozwiąż nierówność.

(3-x)^{2}-2(x+3)\leq(x-2)^{2}-3(2x-1)

2. Podaj liczbę odwrotną do liczby:

-\frac{2}{5}+1\frac{1}{2}*\frac{2}{7}


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