Answer:
Associative property of multiplication
Explanation:
The expression is solved as follows :
(4×5)×2=4×(5×2)
Associative property of multiplication is as follows :
(a×b)×c = a×(b×c)
In this problem,
a = 4, b = 5 and c = 2
Hence, Associative property of multiplication is used to solve the given expression.