Question

單項式－的系數(shù)是 ______    ，次數(shù)為___________;

Answer 1

-   ，____3

解：-的系數(shù)是-，次數(shù)為3.
此題考查了單項式的系數(shù)是其數(shù)字因數(shù)包含符號，次數(shù)是所有字母指數(shù)之和。