Group similar terms together in order to combine like terms.
negative tiles, positive unit tiles, negative unit tiles, and positive tiles. If a negative and a positive tile of the same value make a zero, how many tiles are remaining?
Group similar terms together and make zeros.
Now the fours make a zero.
on the outside to each of the terms inside the parentheses.
Use the eTool below for help with this problem.
Click the link at right for the full version of the eTool: CC2 7-34 HW eTool