Rozwiąż równanie 3x 2-5x 2-9x+15=0
-6x = - 2 -2 - 15
-6x = -19 /-6
x = 19/6
x = 8 1/6 x oraz x = - 8 1/6 x
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-6x = - 2 -2 - 15
-6x = -19 /-6
x = 19/6
x = 8 1/6 x oraz x = - 8 1/6 x