把多项式3x+x³-5x²-1按x的降幂排列是______
问题描述:
把多项式3x+x³-5x²-1按x的降幂排列是______
答
把多项式3x+x³-5x²-1按x的降幂排列是__x³-5x²+3x-1___
答
把多项式3x+x³-5x²-1按x的降幂排列是______x³-5x²+3x-1