blueorange

-4 + 3i + (-2 -i) = -6 + 2i. Plot that easily and connect the points.

1. Do this: $\text{There are 5 available options: xxxxx.} \\\text{These are the possible combinations: 24xxx, x24xx, xx24x, and xxx24} \\\text{it follows that: } \\10\cdot10\cdot10=1000\\ 9\cdot10\cdot10-1=899\\ 9\cdot10\cdot10-1=899\\ 9\cdot10\cdot10-2=898\\ \text{The answer is } 3696$