## Math Basics## All About Numbers |

## How do you perform imaginary numbers computations? |

Imaginary numbers come in handy to do many computations, especially something called *simplification.* Here are some “simple” examples of how to use imaginary numbers:

To simplify the square root (or *sqrt)* of -25:

To simplify 2*i* + 4*i*:

To simplify 21*i* - 5*i*:

To multiply and simplify (2*i*)(4*i):*

(2*i*)(4*i*) = (2 × 4)(*ii*) = (8)(*i*^{2}) = (8)(-1) = -8