问题标题：
【2(x-3/1)+｜y+1｜=0,求6xy-2(xy-2xy-2x)-xy的值2(x-3/1)²+｜y+1｜=0,求6x²y-2(x²y-2xy-2x²)-xy的值】
问题描述：
2(x-3/1)+｜y+1｜=0,求6xy-2(xy-2xy-2x)-xy的值
2(x-3/1)²+｜y+1｜=0,求6x²y-2(x²y-2xy-2x²)-xy的值
柏赟回答：
2（x-3/1）²=0Iy+1I=0（x-3/1)²=0Y+1=0x-3/1=0Y=-1x=36x²y-2(x²y-2xy-2x²)-xy=6×3²×（-1）-2【3²×（-1）-2×3×（-1）-2×3²】-3×（-1）=-54-2【-9+6-18】+3=-54+4...
点击显示
数学推荐
热门数学推荐