Question 84549
Write in simplest form

(8a^-6)^2/3
{{{(2^3*a^(-6))^(2/3)}}}
{{{2^(3*(2/3))a^(-6(2/3))}}}
{{{2^2*a^(-4)}}}
{{{4a^(-4)}}}  
If you're not allowed negative exponents:
{{{4/a^4}}}
Happy Calculating!!!