10x(5x²-y)-2x(5y+25x²)-3xy 求化简
问题描述:
10x(5x²-y)-2x(5y+25x²)-3xy 求化简
答
10x(5x²-y)-2x(5y+25x²)-3xy
=50x³-10xy-10xy-50x³-3xy
=-23xy