Question

What is `3m^8n * (-9mn^2)`?

Answer 1

`-27m^9n^3`

Explanation:

Break it into parts:
`3 * -9 = -27`
`m^8 * m^1 = m^(8+1) = m^9`
`n^1 * n^2 = n^(1+2) = n^3`

Then multiply all the parts together to get the answer.