Complex numbers
A complex number is a number that is expressed in the form a + bi, where a and b are real numbers and i is the imaginary number. The Fundamental Theorem Of Algebra may require a complex number in the equation to make the polynomial equal to zero.
![[img width=252,height=200]https://lh6.googleusercontent.com/18tcaVmLw-9kIDzLzWVmjcrWmMyR-VbEN2f5GNGyR1xPP7RK9lq5pGUK2ODpbogXQz5aDsZ8hWm51bb03suuL6B0bnDVfr7ud8h38v-RMjJiZxbk8BoRvMo95Xlr4bHwO5B4VB9b[/img][img width=211,height=202]https://lh4.googleusercontent.com/lkkmaOTepRJgi8jD6i3XE_6Ql7oEYZIw0vlbY9WvsoUGNlBk24XfLZHpoZO35bhaeoqjrbiU_g-ribt717VC-2Hyqa9MeZnR9ITBygU5JANjeaF1VdtrEC3U-aUd5aYhj308FXr9[/img]](https://www.geogebra.org/resource/bXEF5DQZ/CWiYZArpbytsfL6M/material-bXEF5DQZ.png)
