求3xy²-4x²y-2xy²+ 5x²y的值,其中x,y满足|x-1|+(y+2)²=0=0
问题描述:
求3xy²-4x²y-2xy²+ 5x²y的值,其中x,y满足|x-1|+(y+2)²=0=0
快
答
xy²+x²y=2
求3xy²-4x²y-2xy²+ 5x²y的值,其中x,y满足|x-1|+(y+2)²=0=0
快
xy²+x²y=2