Solve $\sqrt { 3 x + 1 } - x = - 3$ and check your solution.

1. You should have gotten two values for $x$ when you solved. Did you? If not, rework the problem.

   Hint (a):

   Add $x$to both sides. Then square both sides.
   You will need to use the Distributive Property.

   More Help (a):

   Set the equation equal to 0. You will need to factor or use the Quadratic Formula to solve.

   Answer (a):

   $x = 1 \text{ or } x = 8$

2. Did you check both solutions? What happened?

   Hint (b):

   One of the two solutions is extraneous (does not check)