Answer:
Explanation:
Commutative propriety really means you can change (commute) the order you add or multiply numbers and the result will be the same
ab = ba
x+18 = 18+ x
Associative propriety means you can add in any order
3+(a+b) = (3+a) + b
Combine like terms is 8 of something - 3 of the same thing is 5 of something
8x^4 - 3x^4 = 5x^4
only the terms with b are the same kind
9b+ 4b -14 = 13b -14