化简：2a^
化简：2a^-3b^2*3a^-2b/4a^-4*b^-3 2a^(-3)b^2*3a^(-2)b/[4a^(-4)*b^(-3)] =[6*a^(-3-2)*b^(2+1)]/[4a^(-4)*b^(-3)] =[6*a^(-5)*b^3]/[4a^(-4)*b^(-3)] =(3/2)*a^(-5+4)*b^(3+3) =(3/2)*a^(-1)*b^6 =(3b^6)/(2a)