(-2m-1)*(3m-2)=?
问题描述:
(-2m-1)*(3m-2)=?
答
原式=-(2m+1)(3m-2)
=-[6m^2-m-2]
=-6m^2+m+2
(-2m-1)*(3m-2)=?
原式=-(2m+1)(3m-2)
=-[6m^2-m-2]
=-6m^2+m+2