September 2018 1 10 Report

Równania kwardratowe :

1) \frac {2}{3} x^{2} - 1,6x - 1,2 = 0

2) 3x^{2} - 10x = -3

3) 3x^{2} - 4x = 39

4) (x-1)(x-2) = 20

5) 9x^{2} = 4x - 9x
6) (2x-3)^{2}=8x


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