Rozwiąż równania:
a. 2x do kwadratu = 8
b. (x+1) (2x-6) = O
c. xdo kwadratu = 5x
d. 2 (1 - 3x) = 5 - 6x
e. (9 - x) do kwadratu = 0
f. (3x - 2) * 4 = 24x + 6 / 2 - 11
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