3x²-[7x-(4x-3)-2x²]快给答案着急
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/22 02:42:22
![3x²-[7x-(4x-3)-2x²]快给答案着急](/uploads/image/z/1347223-31-3.jpg?t=3x%26%23178%3B-%5B7x-%284x-3%29-2x%26%23178%3B%5D%E5%BF%AB%E7%BB%99%E7%AD%94%E6%A1%88%E7%9D%80%E6%80%A5)
3x²-[7x-(4x-3)-2x²]快给答案着急
3x²-[7x-(4x-3)-2x²]
快给答案着急
3x²-[7x-(4x-3)-2x²]快给答案着急
=3x²-7x+(4x-3)+2x²
=3x²-7x+4x-3+2x²
=5x²-3x-3
=3x²-[7x-4x+3-2x²]
=3x²-3x-3+2x²
=5x²-3x-3
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来源:学生作业帮助网 编辑:作业帮 时间:2024/06/22 02:42:22
3x²-[7x-(4x-3)-2x²]快给答案着急
3x²-[7x-(4x-3)-2x²]
快给答案着急
3x²-[7x-(4x-3)-2x²]快给答案着急
=3x²-7x+(4x-3)+2x²
=3x²-7x+4x-3+2x²
=5x²-3x-3
=3x²-[7x-4x+3-2x²]
=3x²-3x-3+2x²
=5x²-3x-3