Question

(x*2+2x)*2-2(x*2+2x)-3=0

Answer 1

(х*2+2х)*2-2(х*2+2х)-3=0
(2х+2х)*2-2(2х+2х)-3=0
4х+4х-4х+4х-3=0
8х-3=0
8х=0+3
8х=3
х=3/8