Предмет: Математика, автор: mati99ru

Помогите решить пожалуйста!

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Автор ответа: гюйс

(2х+1)² - (2х-2)(2х+2)=38
4х²+4х+1 - 4х²+4=38
4х=38-5
4х=33
х=33:4
х=8,25

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