Question 507338
{{{(6^-2*r^-3)/(2^3(r^-5)^-3)}}}

first use the rule:

any nonzero number raised to a negative power equals its reciprocal raised to the opposite positive power

{{{((1/6^2)*(1/r^3))/(2^3(1/(r^-5)^3))}}}


{{{(1/(6^2*r^3))/(2^3/(1/(r^5))^3)}}}


{{{(1/(6^2*r^3))/((2^3*(r^15))/1)}}}.........multiply the outer 2 terms (put it as nominator) and multiply the inner 2 term (put it as denominator)


{{{1/(6^2*r^3*2^3*r^15)}}}


{{{1/(288*r^18)}}}