Question 8e0b71e1

Advanced Math - Nonlinear equations in one variable and systems of equations in two variables

$\frac{x^{2}}{\sqrt{x^{2} - c^{2}}} = \frac{c^{2}}{\sqrt{x^{2} - c^{2}}} + 39$

In the given equation, $c$ is a positive constant. Which of the following is one of the solutions to the given equation?