For this case the first thing you should know is the meaning of commutative property.
We have then that by definition:
Commutative property: Property of certain operations that is verified when changing the order of the terms, the result remains invariable.
Thus, an equivalent expression is:
(2x + 5) · 8 = (5 + 2x) · 8
Answer:
An expression that is equal to (2x + 5) · 8 using the commutative property is:
(5 + 2x) · 8
