On your paper, draw the algebra tiles to represent the equation $x^2+2x=8$ on an equation mat.  

1. How many tiles do you need to add or remove from each side of the equation to complete the square?

   Hint (a):

   Draw the equation mat with the algebra tiles.
   In order to complete the square you will need to make the equation $x^2+2x+1$ on one of the sides.
   What did you do to make this equation?

2. Write the equation in perfect square form.

   Answer (b):

   $\begin{array}{l} x^2 + 2x + 1 = 8 + 1 \\ (x + 1)(x + 1) = 9 \\ (x + 1)^2 = 9 \end{array}$