Question 59100
{{{(4^-2+2^-3)^-4}}}
this equation is the same as
{{{(4^(1/2)+2^(1/3))^(1/4)}}}
convert these into common fractions

{{{((1/16)+(1/8))^(1/4)}}}

you can simplify the answer to 
{{{(3/16)^(1/4)}}}

now to solve, take the fraction, invert it and multiply it to the power of 4/1 that is the same as the power of 4

{{{(16^4/3^4)}}}

your answer is

{{{65536/81}}}