Question

How do you simplify `( 2 - i^2) * (-3 - i^2)`?

Answer 1

`=-6.`

Explanation:

We have, `i^2=-1`

Sub.ing in the given eqn., we get,

Exp. `={2-(-1)}{-3-(-1)}`
`=(2+1)(-3+1)`
`=3*(-2)`
`=-6.`