xy²-8xy+3x²y+25是几次几项是,它的二次项为
问题描述:
xy²-8xy+3x²y+25是几次几项是,它的二次项为
答
xy²-8xy+3x²y+25是三次四项是,它的二次项为-8xy
答
xy²-8xy+3x²y+25是三次四项式,它的二次项为-8xy