若两个不等实数m,n满足条件:m²-2m-3=0,n²-2n-3=0,则m²+n²的值是
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![若两个不等实数m,n满足条件:m²-2m-3=0,n²-2n-3=0,则m²+n²的值是](/uploads/image/z/1124305-25-5.jpg?t=%E8%8B%A5%E4%B8%A4%E4%B8%AA%E4%B8%8D%E7%AD%89%E5%AE%9E%E6%95%B0m%2Cn%E6%BB%A1%E8%B6%B3%E6%9D%A1%E4%BB%B6%3Am%26%23178%3B-2m%EF%BC%8D3%3D0%2Cn%26%23178%3B%EF%BC%8D2n-3%3D0%2C%E5%88%99m%26%23178%3B%2Bn%26%23178%3B%E7%9A%84%E5%80%BC%E6%98%AF)
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若两个不等实数m,n满足条件:m²-2m-3=0,n²-2n-3=0,则m²+n²的值是
若两个不等实数m,n满足条件:m²-2m-3=0,n²-2n-3=0,则m²+n²的值是
若两个不等实数m,n满足条件:m²-2m-3=0,n²-2n-3=0,则m²+n²的值是
18
10
用十字相乘法解得 m有2个值 -1和3
n也有2个值 -1和3,m n是不等实数所以m n不相等m2+n2=10