Question

將多項(xiàng)式3xy³+x³+6-4x²y按字母x降冪排列是

x³-4x²y+3xy³+6

．

Answer 1

分析：按照x的次數(shù)由高到低把多項(xiàng)式進(jìn)行排列．

解答：解：多項(xiàng)式3xy³+x³+6-4x²y按字母x降冪排列為x³-4x²y+3xy³+6．
故答案為x³-4x²y+3xy³+6．

點(diǎn)評：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)．