1.若(m²+n²)(1-m²-n²)+6=0,则m²+n²的值为?2.已知(a²+b²)(a²+b²-4)=12,则a²+b²的值为?3.方程(x²+3x)²+9(x²+3x)+44=0解得情况为?4.关于x的方程2x²-8x
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![1.若(m²+n²)(1-m²-n²)+6=0,则m²+n²的值为?2.已知(a²+b²)(a²+b²-4)=12,则a²+b²的值为?3.方程(x²+3x)²+9(x²+3x)+44=0解得情况为?4.关于x的方程2x²-8x](/uploads/image/z/2585361-57-1.jpg?t=1.%E8%8B%A5%EF%BC%88m%26%23178%3B%2Bn%26%23178%3B%EF%BC%89%281-m%26%23178%3B-n%26%23178%3B%29%2B6%3D0%2C%E5%88%99m%26%23178%3B%2Bn%26%23178%3B%E7%9A%84%E5%80%BC%E4%B8%BA%3F2.%E5%B7%B2%E7%9F%A5%28a%26%23178%3B%2Bb%26%23178%3B%29%28a%26%23178%3B%2Bb%26%23178%3B-4%29%3D12%2C%E5%88%99a%26%23178%3B%2Bb%26%23178%3B%E7%9A%84%E5%80%BC%E4%B8%BA%3F3.%E6%96%B9%E7%A8%8B%EF%BC%88x%26%23178%3B%2B3x%29%26%23178%3B%2B9%EF%BC%88x%26%23178%3B%2B3x%EF%BC%89%2B44%3D0%E8%A7%A3%E5%BE%97%E6%83%85%E5%86%B5%E4%B8%BA%3F4.%E5%85%B3%E4%BA%8Ex%E7%9A%84%E6%96%B9%E7%A8%8B2x%26%23178%3B-8x)
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