Question

How do you multiply `(b ^ { 2} ) ^ { - 2} ( b ^ { 4} ) ^ { 5}`?

Answer 1

`b^16`

Explanation:

using exponential law:
`1/m^2 = m^-2`
`m^2.m^2 = m^(2+2) = m^4`
So:
`(b^2)^-2.(b^4)^5`
`b^(2X(-2).b^(4X5)`
`b^-4.b^20`
`b^(20-4)`
`b^16`