Odpowiedź:
5x² = 125 | : 5
x² = 25
x² - 25 = 0
(x + 5)(x - 5) = 0
x + 5 = 0 ∨ x - 5 = 0
x = - 5 ∨ x = 5
Szczegółowe wyjaśnienie:
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Odpowiedź:
5x² = 125 | : 5
x² = 25
x² - 25 = 0
(x + 5)(x - 5) = 0
x + 5 = 0 ∨ x - 5 = 0
x = - 5 ∨ x = 5
Szczegółowe wyjaśnienie: