((x^3y^2)^(3/2))/(x^-1y^(-2/3))^(1/4)
:.=(x^(9/2)y^(6/2))/(x^(-1/4)y^(-2/12))
:.=(x^(9/2)y^3)/(x^(-1/4)y^(-2/12))
:.=(x^(9/2)y^3)/(x^(-1/4)y^(-1/6))
:.=x^(9/2+1/4)y^(3+1/6)
:.=x^(9/2+1/4)y^(19/6)
:.=x^((18+1)/4)y^(19/6)
:.color(magenta)(=x^(19/4)y^(19/6)