Предмет: Алгебра, автор: Аноним

Уравнение
√(2х-2)= 4

Ответы

Автор ответа: Аноним

0

ОДЗ
2х-2 $\geq$ 0
х $\geq$ 1
возводим обе части в квадрат и решаем
2х-2=16
2х=16+2
2х=18
х=18/2
х=9∈ОДЗ
Ответ х=9

Автор ответа: Pоlly

1

$\sqrt{2x-2} =4 \\ 2x-2= 4^{2} \\ 2x-2=16 \\ 2x=18 \\ x=9$

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