### Home > CC1MN > Chapter 8 > Lesson 8.2.4 > Problem 8-107

8-107.

Sketch the collection of algebra tiles that is described by the following expression. Rewrite the area of the collection by combining like terms.

Indicate how many -tiles are needed.

Circle any term that has only one in it.

Then add the coefficients.

Note: A variable without a coefficient showing actually has a coefficient of

Now do the same to find the number of