Question 1109660
{{{(x^6/5^"")^(-2)}}}

Flip the fraction and change the sign of the exponent outside:

{{{(5^""/x^6)^2}}}

Consider the 5 on top to have exponent 1

{{{(5^1/x^6)^2}}}

Remove the parentheses by multiplying each inner exponent
by the outer exponent 2:


{{{5^2/x^12}}}

Finally change the 5² to 25

{{{25^""/x^12}}}