(1/3-m) (1/2m-3) помогите решить

(1/3*1/2m+1/3*(-3)-m*1/2m-m*(-3)(1/3*1/2m+1*(-1)-m*1/2m-m*(-3)(m/2*3+1*(-1)-m*1/2m-m*(-3)1/6m+1*(-a)-m=1/2m-m*(-3)(1/6m-1-m*1/2m-m*(-3)(1/6m-1-1/2m^2-m*(-3)(1/6m-1-1/2m^2+3m)(-1/2m^2+1/6m+3m-1)(-1/2m^2+1/6m+3m*6/6-1)(-1/2m^2+1/6m+18m/6-1)(-1/2m^2+1/6(m+18m)-1)(-1/2m^2+19m/6-1)-1/2m^2+19m/6-1 ответ!