Question

5x2+26=8x-3решите срочно​

Answer 1

Ответ:

5x2+26=8x-3

10х+26=8х-3

10х=8х-29

10х+26-26=8х-3-26

10х=8х-29

10х

8х-29

2х=-29

10х-8х=8х-8х-29

2х=-29

2х

-29

х=-29/2

2х/2=-29/2

х=-29/2

х

-29/2