-210x2-x2y+2π-3是
3
3
3
3
項(xiàng)式,常數(shù)項(xiàng)是
2π-3
2π-3
,最高次項(xiàng)是
-x2y
-x2y
分析:根據(jù)次數(shù)最高項(xiàng)的次數(shù)為多項(xiàng)式的次數(shù),由幾個(gè)單項(xiàng)式相加形成多項(xiàng)式,每一個(gè)單項(xiàng)式為多項(xiàng)式的項(xiàng),判斷即可.
解答:解:-210x2-x2y+2π-3是3次3項(xiàng)式,常數(shù)項(xiàng)是2π-3,最高次項(xiàng)是-x2y.
故答案為:3;3;2π-3;-x2y.
點(diǎn)評(píng):此題考查了多項(xiàng)式與單項(xiàng)式,熟練掌握各自的定義是解本題的關(guān)鍵.
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-210x2-x2y+2π-3是________次________項(xiàng)式,常數(shù)項(xiàng)是________,最高次項(xiàng)是________.

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