Solve. LaTeX:  \displaystyle \sqrt{x + 24}=\sqrt{x - 6} + 2

Squaring both sides gives LaTeX:  \displaystyle x + 24=x + 4 \sqrt{x - 6} - 2 . Isolating the radical gives LaTeX:  \displaystyle \frac{13}{2}=\sqrt{x - 6} Squaring again gives LaTeX:  \displaystyle \frac{169}{4}=x - 6 . Solving for LaTeX:  \displaystyle x gives LaTeX:  \displaystyle x=\frac{193}{4} . Checking the solution, LaTeX:  \displaystyle x = \frac{193}{4} , in the original equation gives LaTeX:  \displaystyle \frac{17}{2} = \frac{17}{2} which is true so the solution checks.