September 2018 1 21 Report

Rozwiąż równania kwadratowe

1.x2(x do kwadratu)-5x +6=0

2.x2(x do kwadratu)=9

3.x2(x do kwadratu)+5x+1=0

4.(x-3)(x+3)=0

5.x2(x do kwadratu)+2x=-1


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