解方程:25-4x²+4xy-y²
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/08/13 14:45:40
解方程:25-4x²+4xy-y²
![解方程:25-4x²+4xy-y²](/uploads/image/z/18906164-44-4.jpg?t=%E8%A7%A3%E6%96%B9%E7%A8%8B%EF%BC%9A25-4x%26%23178%3B%2B4xy-y%26%23178%3B)
原式=25-(4x²-4xy+y²)
=25-(2x-y)²
=(5+2x-y)(5-2x+y)
=25-(2x-y)²
=(5+2x-y)(5-2x+y)
解方程:x²+2xy+6x+2y²+4y+10=0
解方程x²-2xy+y²=9,x²+4xy+4y²+x+2y=2 2x-1/y=
(x-y)(x²+xy+y²)解方程
解方程x四方-x²+2xy+y²+1=0 x²+2xy+6x+2y²+4y+10
用配方法解方程求xy 3x²-12x+4y²-8y+16=0
解方程: 5x²-6xy+2y²-4x+2y+1=0
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已知x²+y²-8x+6y+25=0,求(x-y+4xy/x-y)(x+y-4xy/x+y)
解方程x²-4xy+4y²+x-2y-2=0,3x+2y-11=0
因式分解:4x²y+4xy²+xy²