若4x²y³+mx²y³=-2x²y³,则m=

若4x²y³+mx²y³=-2x²y³,则m=

合并同类项得(6+m)x`2 y`3=0即6+m=0得出m=-6

若4x²y³+mx²y³=-2x²y³，

则m=-6