Question

How do you evaluate `-81^(3/4)`?

Answer 1

`=color(blue)( - 27`

Explanation:

`81 = color(blue)(3^4`

the expression can be re written as :
`= -color(blue)((3^cancel4))^(3/cancel4)`
`= -(3)^3`
`=color(blue)( - 27`