Respuesta :

(^= square root)

evaluate the power            ^2x + 1 = (-5) to the second power

move constant to the right        ^2x + 1 = 25

subtract numbers          ^2x + 25 - 1

square both sides         ^2x = 24

divide both sides by 2        2x = 576

check solution          x = 288

simplify equality       ^2 x ^288 + 1 = (-5) to the second power      

25=25