Question 950308
{{{(9t^2s^4)/(-3t^2s^3)=-(9/3)t^(2-2)s^(4-3)}}}
{{{(9t^2s^4)/(-3t^2s^3)=-3t^(0)s^(1)}}}
{{{(9t^2s^4)/(-3t^2s^3)=-3s}}}