Question

單項(xiàng)式-

x3y4z

7

的系數(shù)是

-

1

7

，次數(shù)是

8

．

Answer 1

分析：根據(jù)單項(xiàng)式系數(shù)和次數(shù)的定義求解．

解答：解：單項(xiàng)式-

x3y4z

7

的系數(shù)是-

1

7

，次數(shù)是8．
故答案為：-

1

7

，8．

點(diǎn)評：本題考查了單項(xiàng)式的系數(shù)和次數(shù)，單項(xiàng)式中的數(shù)字因數(shù)叫做這個單項(xiàng)式的系數(shù)，單項(xiàng)式中，所有字母的指數(shù)和叫做這個單項(xiàng)式的次數(shù)．