Simplify 3(2x⁴)².

12x⁶

12x⁸

36x⁶

36x⁸

Simplify `(b^6)/(b^-3)`.

b²

b⁹

b^-2

b^-3

Which of these is NOT correct?

`4^-1 ＝ 1/4`

`2ab^-1 ＝ 1/(2ab)`

`(9/(2a^3))^-1 ＝ (2a^3)/9`

All of these are correct.

Multiply h ^-5 by h.

h ⁵

h ^-4

h ^-5

h ^-6