Report - Mh9S178Nr2 Biquadratische GleichungenXX a.z² -9z=0; z(z-9)=0; z 1 =x 1 ²=0; z 2 =x 2 ²=9; x 1 =0 x 2 = -3 x 3 =+3 d. 2z² -10z + 8 = 0; z 1 = x 1 ² =1 z.

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