Which properties are used to add these complex numbers? check all that apply. (4+3i)+(8+2i)=(4+8i)+(3i+2i)=12+5i a. associative property b. commutative property c. distributive property d. none of the above

Properties used here are:

A Associative property

B Commutative property.

Step-by-step explanation:

Given the expression:  

Using associative property:

Using commutative property:  

            [Using associative property]

Simplify:

step-by-step explanation: