Предмет: Математика, автор: lianabumudzahed

сколько корней имеет уравнение |х| = |-4+8|
и объяснение почему, хочу понять.​

Ответы

Автор ответа: TanKut
0

ответ:

\displaystyle x_1=-4,x_2=4

решение:

\displaystyle |x|=|-4+8|\\|x|=|4|\\|x|=4\\x=4,x=-4

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