# How do you simplify (8i)(-4+5i)?

Dec 8, 2016

$- 40 - 32 i$

#### Explanation:

You can multiply and get:

$- 32 i + 40 {i}^{2}$

Then, since ${i}^{2} = - 1$, you will get:

$- 40 - 32 i$