Answer :
216k4 is the product of 216, k, and 4.
It doesn't matter what order you multiply things in (associative prop. of multiplication) so we can multiply 216 by 4 to get 864.
Therefore 216k4 = 864k.
It doesn't matter what order you multiply things in (associative prop. of multiplication) so we can multiply 216 by 4 to get 864.
Therefore 216k4 = 864k.
