(数学题)请同学们观察一道二元一次方程组 2m+5n=-8 4m-2n=5 的基本题.它有种种的不同表现形式.例如:若|2m+5n+8|+(4m-2n-5)²=0求m.n的值2.若2x(2m+5n+9)-5y(4m-2n-4)=8是关于x.y的二元一次方程,求m.n
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![(数学题)请同学们观察一道二元一次方程组 2m+5n=-8 4m-2n=5 的基本题.它有种种的不同表现形式.例如:若|2m+5n+8|+(4m-2n-5)²=0求m.n的值2.若2x(2m+5n+9)-5y(4m-2n-4)=8是关于x.y的二元一次方程,求m.n](/uploads/image/z/387768-48-8.jpg?t=%28%E6%95%B0%E5%AD%A6%E9%A2%98%29%E8%AF%B7%E5%90%8C%E5%AD%A6%E4%BB%AC%E8%A7%82%E5%AF%9F%E4%B8%80%E9%81%93%E4%BA%8C%E5%85%83%E4%B8%80%E6%AC%A1%E6%96%B9%E7%A8%8B%E7%BB%84+2m%2B5n%3D-8+4m-2n%3D5+%E7%9A%84%E5%9F%BA%E6%9C%AC%E9%A2%98.%E5%AE%83%E6%9C%89%E7%A7%8D%E7%A7%8D%E7%9A%84%E4%B8%8D%E5%90%8C%E8%A1%A8%E7%8E%B0%E5%BD%A2%E5%BC%8F.%E4%BE%8B%E5%A6%82%EF%BC%9A%E8%8B%A5%7C2m%2B5n%2B8%7C%2B%284m-2n-5%29%26%23178%3B%3D0%E6%B1%82m.n%E7%9A%84%E5%80%BC2.%E8%8B%A52x%EF%BC%882m%2B5n%2B9%EF%BC%89-5y%EF%BC%884m-2n-4%EF%BC%89%3D8%E6%98%AF%E5%85%B3%E4%BA%8Ex.y%E7%9A%84%E4%BA%8C%E5%85%83%E4%B8%80%E6%AC%A1%E6%96%B9%E7%A8%8B%2C%E6%B1%82m.n)
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