The commutative property of addition states that the order of addends can be changed without affecting the sum.
For the expression \( 4x^2 + 8x \), we can rewrite it by changing the order of the terms.
Using the commutative property, you can express it as:
\[ 8x + 4x^2 \]
Both expressions represent the same value, so this is a valid use of the commutative property of addition.