Помогите решить: [tex] (2x+1)^{3} =27 [/tex]. Created by Vika123456789001. matematika-ru

Проверка: Ответ: х=1

tex]...

August 2022 1 25 Report

Помогите решить: [tex] (2x+1)^{3} =27
[/tex]

Answers & Comments

aliyas1
$(2x+1)^{3} =27 \\ (2x+1)^{3} = {3}^{3} \\ 2x+1=3 \\ 2x = 3 - 1 \\ 2x = 2 \\ x = 2 \div 2 \\ x = 1$
Проверка:
$(2 \times 1+1)^{3} =27 \\ {3}^{3} = 27 \\ 27 = 27$
Ответ: х=1

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