(2х+3)² -(2х+5)*(2х-5) =34
\((2x+3)^2-(2x+5)(2x-5)=34\)
\((4x^2+12x+9)-(4x^2-25)=34\)
\(12x+34=34\)
\(12x=0\)
\(x=0\)
+150 
