Question

what expression does this set of algebra tiles represent? combine like terms. for example, write 3 instead of 1 + 1 + 1.

Explanation:

Step1: Count $x^2$ tiles

There are 8 blue tiles labeled $x^2$, so this term is $8x^2$.

Step2: Count $x$ tiles

There are 9 green tiles labeled $x$, so this term is $9x$.

Step3: Count constant tiles

There are 7 yellow tiles labeled 1, so this term is $7$.

Step4: Combine like terms

Add the three simplified terms together.
$8x^2 + 9x + 7$

Answer:

$8x^2 + 9x + 7$