Question 504475
This is not an equation, no equal sign, so you can solve it, only simplify it.

{{{ ((c^3) (d^-2))^-1 }}}
The reciprocal gets rid of the -1 exponent and changes the ^-2 to ^2
{{{ 1/((c^3) (d^-2))}}} = {{{ d^2/(c^3) }}}