October 2018 1 20 Report

funkcja kwadratowa, rozwiąż równanie:

1-xkwadrat=1-x

1-6x=-9xkwadrat

x(x+1)=9x-16

rozwiąż rówanie

6xkwadrat-18=0

4/5xkwadrat-2=0

4xkwadrat+1=0


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