Matematika Sekolah Menengah Atas Quiz(11/20)x² - 1 = 15x = ... ​

christanaderulv – March 05, 2023

Quiz(11/20)


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

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