Question

7、多項(xiàng)式5x²y+3x²y²+4xy²的次數(shù)為

4

，項(xiàng)數(shù)為

3

．

Answer 1

分析：由于多項(xiàng)式中的每個(gè)單項(xiàng)式叫做多項(xiàng)式的項(xiàng)，由此判定多項(xiàng)式5x²y+3x²y²+4xy²共有三項(xiàng)，其最高次項(xiàng)3x²y²的次數(shù)為4．

解答：解：∵多項(xiàng)式中的每個(gè)單項(xiàng)式叫做多項(xiàng)式的項(xiàng)，
∴多項(xiàng)式5x²y+3x²y²+4xy²的次數(shù)為4，項(xiàng)數(shù)為3，
故填空答案：4；3．

點(diǎn)評(píng)：本題考查了同學(xué)們對(duì)多項(xiàng)式的項(xiàng)和次數(shù)定義的掌握情況．