Question 676365
{{{((4x^4)/(8x^8))^4}}}
simplifies to 
{{{(1/2x^4)^4}}}
...
when raising an exponent to another exponent, multiply the exponents
{{{1/(2^4x^(4*4))}}}
{{{highlight_green(1/16x^16)}}}, which can also be written as {{{(16x^16)^-1}}}
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