Answer
22-6i
Work Step by Step
For imaginary numbers, we know that standard form is $a\pm bi$, where $a$ is the real part and $b$ is the imaginary part. We also know that $i^2=-1$. Thus, we simplify the expression until it is in standard form to obtain:
$$ 20+2 -10i+ 4i \\ 22-6i$$
