来自贝绍轶的问题
【若单项式4xmy3与-x2yn-1的和是单项式,则m=______,n=______.】
若单项式4xmy3与-x2yn-1的和是单项式,则m=______,n=______.
1回答
2020-07-25 12:02
【若单项式4xmy3与-x2yn-1的和是单项式,则m=______,n=______.】
若单项式4xmy3与-x2yn-1的和是单项式,则m=______,n=______.
∵单项式4xmy3与-x2yn-1的和是单项式,
∴此两单项式是同类项,由同类项的定义可知:
m=2;
n-1=3,n=4.
答:m=2,n=4.