Solve. LaTeX:  \displaystyle \sqrt{x + 32}=\sqrt{x - 8} - 1

Squaring both sides gives LaTeX:  \displaystyle x + 32=x - 2 \sqrt{x - 8} - 7 . Isolating the radical gives LaTeX:  \displaystyle - \frac{39}{2}=\sqrt{x - 8} Squaring again gives LaTeX:  \displaystyle \frac{1521}{4}=x - 8 . Solving for LaTeX:  \displaystyle x gives LaTeX:  \displaystyle x=\frac{1553}{4} . Checking the solution, LaTeX:  \displaystyle x = \frac{1553}{4} , in the original equation gives LaTeX:  \displaystyle \frac{41}{2} = \frac{37}{2} which is false so it is an extraneous solution and there is no solution.