Question

多項(xiàng)式2a³-3a²b-ab+1的次數(shù)和項(xiàng)數(shù)說法正確的是（　�。�

A．三次、四項(xiàng)

B．四次、四項(xiàng)

C．四次、三項(xiàng)

D．三次、三項(xiàng)

Answer 1

分析：根據(jù)多項(xiàng)式的次數(shù)和項(xiàng)數(shù)的定義求解．

解答：解：多項(xiàng)式2a³-3a²b-ab+1是三次四項(xiàng)式．
故選A．

點(diǎn)評(píng)：本題考查了多項(xiàng)式：幾個(gè)單項(xiàng)式的和叫做多項(xiàng)式，每個(gè)單項(xiàng)式叫做多項(xiàng)式的項(xiàng)，其中不含字母的項(xiàng)叫做常數(shù)項(xiàng)．多項(xiàng)式中次數(shù)最高的項(xiàng)的次數(shù)叫做多項(xiàng)式的次數(shù)．