Understanding Complex Numbers
Complex numbers have two parts: a real number and an imaginary number written as a + bi. The mysterious i is defined as the square root of -1, something you can't find on a regular number line!
Working with complex numbers isn't as scary as it sounds. When adding or subtracting, you simply combine like terms - real parts with real parts, imaginary parts with imaginary parts.
For example, to add + , you combine the real parts and the imaginary parts to get 0+6i, or simply 6i.
Quick Tip: Think of complex numbers like combining apples and oranges - you can't mix them directly, but you can count how many of each you have!
