*i*. Here the real part is 5 and the imaginary part is 0. Next we consider powers of

*i*.

**Simplify**.

Adding and subtracting complex numbers is just a matter of adding like terms. Be sure to use the order of operations and add real and imaginary parts separately.

**Add or subtract**.

*i*^2 often. In this case, we will replace them all with -1. In addition, the property

*A*or

*B*is non-negative; therefore, simplify using the imaginary unit before multiplying.

**Tip**: Make use of the imaginary unit if the radicand is negative before trying to simplify.

**Multiply**.

**Multiplying complex numbers often requires the distributive property.**

**Divide**.