## Thinking Mathematically (6th Edition)

RECALL: The commutative property of multiplication states that for any real numbers $a$ and $b$, $a \cdot b = b \cdot a$ The given expression is in the same form as the one given above. While there may be parentheses, we see that what is really changing is the order of the two things that are being multiplied. Thus, the given expression illustrates the commutative property of multiplication.