Question

（1997•河南）把多項(xiàng)式2xy²-x²y-x³y³-7按x作升冪排列是

-7+2xy²-x²y-x³y³

．

Answer 1

分析：找出多項(xiàng)式中各項(xiàng)中x的指數(shù)，按照從低到高的次序排列即可．

解答：解：根據(jù)題意得：-7+2xy²-x²y-x³y³．
故答案為：-7+2xy²-x²y-x³y³

點(diǎn)評(píng)：此題考查了多項(xiàng)式，解題的關(guān)鍵是弄清多項(xiàng)式次數(shù)是多項(xiàng)式中次數(shù)最高的項(xiàng)的次數(shù)．