Question 5520
If an exponent is a negative number, it can be made positive by crossing the division line.

For example:{{{m^-2=1/m^2}}}
and {{{1/m^-6=m^6}}}

and anything raised to the 0 power is equal to one:
{{{a^0=1}}} and {{{b^-2=1/b^2}}}and {{{c^-1=1/c}}}
so your answer is 
{{{1/b^2c}}}