Question

x+√x²-2=4 ayuden plsss

Answer 1

Hola...... 

$x+ \sqrt{ x^{2} } -2=4$

$x+x-2=4$

$2x-2=4$

$2x=4+2$

$2x=6$

$x= \frac{6}{2}$

$x=3$

Rpta: 3 

Suerte y saludos !!