化简3(x²y+xy)-4(x²y-xy)-5x²y,
来源:学生作业帮助网 编辑:作业帮 时间:2024/05/13 05:21:20
化简3(x²y+xy)-4(x²y-xy)-5x²y,
化简3(x²y+xy)-4(x²y-xy)-5x²y,
化简3(x²y+xy)-4(x²y-xy)-5x²y,
3(x²y+xy)-4(x²y-xy)-5x²y
=3x²y+3xy-4x²y+4xy-5x²y
=-6x²y+7xy
5xy-8x*xy
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来源:学生作业帮助网 编辑:作业帮 时间:2024/05/13 05:21:20
化简3(x²y+xy)-4(x²y-xy)-5x²y,
化简3(x²y+xy)-4(x²y-xy)-5x²y,
化简3(x²y+xy)-4(x²y-xy)-5x²y,
3(x²y+xy)-4(x²y-xy)-5x²y
=3x²y+3xy-4x²y+4xy-5x²y
=-6x²y+7xy
5xy-8x*xy