Question

How do you simplify `(-mn^8)^3`?

Answer 1

`-27m^3n^24`

Explanation:

`(-3mn^8)^3 = (-3mn^8)xx(-3mn^8)xx(-3mn^8)`

Work it out by looking at:

the signs `rarr`the answer will be negative
the numbers `rarr 3^3 = 27`
the indices `rarrm^3 n^24`

`(-3mn^8)^3 = -27m^3n^24`