多项式﹣2ab+4a3b﹣a2b3+1的次数是__________,二次项系数是__________.

多项式﹣2ab+4a3ba2b3+1的次数是__________,二次项系数是__________

答案

52

【考点】多项式.

【分析】直接利用多项式中次数最高的项的次数叫做多项式的次数,以及利用二次项系数定义分别得出答案.

【解答】解:多项式﹣2ab+4a3ba2b3+1的次数是:5,二次项系数是:﹣2

故答案为:5,﹣2

【点评】此题主要考查了多项式,正确把握多项式的定义是解题关键.

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