Question

ecuaciones radicales
×+2=√ײ+1

Answer 1

$x+2=\sqrt{x^2+1} \\ \\ (x+2)^2=(\sqrt{x^2+1})^2\\ \\ x^2+4+4x=x^2+1\\ \\ 4+4x=1\\ \\ 4x=-3\\ \\ x=-\dfrac{3}{4}$