### Home > CC2MN > Chapter cc26 > Lesson cc26.1.1 > Problem6-6

6-6.

Write the expression shown on each of the Expression Mats below. Then simplify them by making zeros and combining like terms. 6-6 HW eTool (CPM). Homework Help ✎

1. Notice that a grey tile and a white tile of the same value cancel each other out and make a zero.

Now write an expression for the values that remain.

$−2$

1. See part (a).

$2x^2+3x-1$

Use the eTool below to solve part (a).
Click the link at right for the full version of the eTool: CC2 6-6 HW eTool