Question 644492
{{{sqrt(x^-1) * sqrt( 81x^-3) }}}

{{{sqrt(1/x) * sqrt( 81(1/x^3)) }}}.....using positive exponents only


{{{(1/sqrt(x)) * 9(1/sqrt(x^3)) }}}


{{{(1/sqrt(x)) * 9(1/x*sqrt(x)) }}}


{{{(9/x*sqrt(x))sqrt(x)) }}}


{{{9/(x*(sqrt(x)^2)) }}}


{{{9/(x*x) }}}


{{{9/x^2 }}}