. Rozwiąż równania: a) 6x2 - 12x = 0 b) 6x2 - 18 = 0
a)
6x2 - 12x = 0
6x(x - 2) = 0
6x = 0 lub x - 2 = 0
x = 0 lub x = 2
b)
6x2 - 18 = 0
6(x^2 - 3) = 0
x^2 - 3 = 0
(x - √3)(x + √3) = 0
x - √3 = 0 lub x + √3 = 0
x = √3 lub x = -√3
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a)
6x2 - 12x = 0
6x(x - 2) = 0
6x = 0 lub x - 2 = 0
x = 0 lub x = 2
b)
6x2 - 18 = 0
6(x^2 - 3) = 0
x^2 - 3 = 0
(x - √3)(x + √3) = 0
x - √3 = 0 lub x + √3 = 0
x = √3 lub x = -√3