Question

How do you multiply `-2b ^ { 3} \cdot ( - 2a b ^ { 5} ) ^ { 3}`?

Answer 1

`=+16a^3b^18`

Explanation:

`-2b ^ { 3} \cdot ( - 2a b ^ { 5} ) ^ { 3}`

Simplify the bracket out first, by cubing each of the factors.

`-2b^3 xx (-2)^3a^3b^15`

`= -2b^3 xx (-8)a^3b^15`

`=+16a^3b^18`