Question 1129049

{{{(x^-3 - 3x^-4) /(3x^-3 - 9x^-4) }}}


{{{(1/x^3 - 3(1/x^4)) /((3(1/x^3) - 9(1/x^4))) }}}


{{{(1/x^3 - 3/x^4) /(3/x^3 - 9/x^4) }}}


{{{(x^4/(x^3*x^4) - 3x^3/(x^3*x^4)) /(3x^4/(x^3*x^4) - 9x^3/(x^3*x^4)) }}}


{{{((x^4 - 3x^3)/cross((x^3*x^4))) /((3x^4- 9x^3)/cross((x^3*x^4))) }}}


{{{(x^4 - 3x^3) /(3x^4- 9x^3) }}}


{{{x^3(x - 3) /(3x^3(x- 3)) }}}


{{{cross(x^3)1cross((x - 3)) /(3cross(x^3)cross((x- 3)) )}}}


{{{1 /3}}}