Quiz(11/20)
x² - 1 = 15
x = ... ![]()
x² - 1 = 15
x = ...
Penjelasan dengan langkah-langkah:
x² - 1 = 15
x² = 15 + 1
x² = 16
x = √16
x = √4²
x = 4^2/2
x = 4^1
x = ± 4
x1 = +4
x1 = 4
x2 = -4
Penjelasan dengan langkah-langkah:
x² - 1 = 15
x² = 15 + 1
x² = 16
x = √16
x = ± 4
x = 4 atau x = -4
[answer.2.content]
