Question

решите уравнение (2х+1)^2-(2х+3)(2х-3)=0

Answer 1

(2х+1)²-(2х+3)(2х-3)=0
4х²+4х+1-4х²+9=0
4х=-10
х=-2,5

Answer 2

$(2x+1)^{2} -(2x+3)(2x-3)=0;$
$4 x^{2} +4x+1-(4 x^{2} -9)=0;$
$4 x^{2} +4x+1-4 x^{2} +9=0;$
$4x+10=0;$
$4x=-10;$
$x=-2,5.$