### Home > ACC6 > Chapter 6 Unit 6 > Lesson CC1: 6.2.4 > Problem6-107

6-107.

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

$7x+2x^2+3x^2+3+x$

Indicate how many $x^2$, $x$, and unit tiles are needed. Start by finding out how many total $x$-tiles are needed.

Circle any term that has only one $x$ in it.
$\enclose{circle}[mathcolor="orange"]{\color{black}{7x}} +2x^2+3x^2+3+\enclose{circle}[mathcolor="orange"]{\color{black}{x}}$
Note: A variable without a coefficient showing actually has a coefficient of $1$.
Now do the same to find the number of $x^2$ tiles. How many unit tiles are needed?