Respuesta:
hola espero te ayude
Explicación paso a paso:
-1
[tex](x + 2 ) ^{2} = ( \sqrt{2x + 1} ) ^{2} [/tex]
[tex](x) {}^{2} + 2(x)(2) + {2}^{2} = 2x + 1[/tex]
[tex] {x}^{2} + 4x + 4 = 2x + 1[/tex]
[tex] {x}^{2} + 4x + 4 - 2x - 1 = 0[/tex]
[tex]{x}^{2} + 2x + 3 = 0[/tex]
