作业帮计算：6x²y+2xy-3x²y²-7x-5yx-4y²x²-6x²y
来源：学生作业帮助网 编辑：作业帮 时间：2024/12/01 07:32:50
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计算：6x²y+2xy-3x²y²-7x-5yx-4y²x²-6x²y
计算：6x²y+2xy-3x²y²-7x-5yx-4y²x²-6x²y
计算：6x²y+2xy-3x²y²-7x-5yx-4y²x²-6x²y
6x²y+2xy-3x²y²-7x-5yx-4y²x²-6x²y
=6x²y-6x²y+2xy-5yx-3x²y²-4y²x²-7x
=0-3xy-7x²y²-7x
=-x(3y+7xy²+7)
计算：6x²y+2xy-3x²y²-7x-5yx-4y²x²-6x²y
合并同类项得
（6x²y-6x²y）+（2xy-5xy）+（-3x²y²-4y²x²）-7x
=0-3xy-7x²y²-7x
=-3xy-7x²y²-7x
6x²y+2xy-3x²y²-7x-5yx-4y²x²-6x²y
=6x²y-6x²y+2xy-5xy-3x²y²-4x²y²-7x
=-3xy-7x²y²-7x