Solve. $LaTeX: \displaystyle \sqrt{x + 18}=\sqrt{x - 2} + 3$

Squaring both sides gives $LaTeX: \displaystyle x + 18=x + 6 \sqrt{x - 2} + 7$ . Isolating the radical gives $LaTeX: \displaystyle \frac{11}{6}=\sqrt{x - 2}$ Squaring again gives $LaTeX: \displaystyle \frac{121}{36}=x - 2$ . Solving for $LaTeX: \displaystyle x$ gives $LaTeX: \displaystyle x=\frac{193}{36}$ . Checking the solution, $LaTeX: \displaystyle x = \frac{193}{36}$ , in the original equation gives $LaTeX: \displaystyle \frac{29}{6} = \frac{29}{6}$ which is true so the solution checks.