Question 679387
{{{(8/a^3)^(-2/3) = (a^3/8)^(2/3) = root(3,(a^3/8)^2) = root(3,a^(3*2)/64) = root(3,a^6/64)}}}
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{{{root(3,a^6)/root(3,64) = root(3,a^2a^2a^2)/root(3,4*4*4) = highlight_green(a^2/4)}}}
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