(4x²y+5xy-7x)-(5x²y+4xy+x)求解
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/05 12:55:47
![(4x²y+5xy-7x)-(5x²y+4xy+x)求解](/uploads/image/z/2545312-40-2.jpg?t=%284x%26%23178%3By%2B5xy-7x%29-%285x%26%23178%3By%2B4xy%2Bx%29%E6%B1%82%E8%A7%A3)
(4x²y+5xy-7x)-(5x²y+4xy+x)求解
(4x²y+5xy-7x)-(5x²y+4xy+x)求解
(4x²y+5xy-7x)-(5x²y+4xy+x)求解
原式=4x²y+5xy-7x-5x²y-4xy-x=(4x²y-5x²y)+(5xy-4xy)-(7x+x)=-x²y+xy-8x
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来源:学生作业帮助网 编辑:作业帮 时间:2024/07/05 12:55:47
(4x²y+5xy-7x)-(5x²y+4xy+x)求解
(4x²y+5xy-7x)-(5x²y+4xy+x)求解
(4x²y+5xy-7x)-(5x²y+4xy+x)求解
原式=4x²y+5xy-7x-5x²y-4xy-x=(4x²y-5x²y)+(5xy-4xy)-(7x+x)=-x²y+xy-8x