Recall that

![i=\sqrt[]{-1}](https://img.qammunity.org/2023/formulas/mathematics/college/prwnjpkamd054mvqxx3wkz9peqbswm21lz.png)
i is called the imaginary number because it is not solvable.
The complex number is of the form a+ib. where a is a real number and b is a complex number.
Let use take values for a and b as follows.

The complex number are 6+i3 and 10+i13.
Adding two complex numbers


The point is (16,16).
The multiplication of the complex numbers 6+i3 and 10+i13 is


The point is (21,108).
The points on the complex plane is