Solve the Radical Equation $$\sqrt { \mathrm { x } + 1 } = 8$$

Solve the radical equation.
- $$\sqrt { \mathrm { x } + 1 } = 8$$

A) $\{ 63 \}$
B) $\{ 64 \}$
C) $\{ 81 \}$
D) $\{ 65 \}$