通过配方把下列函数化为y=a(x+m)²+k的形式并求出函数最大最小值 ①y=3x²+2x ②y=(5/2)x-2-3x²③怎样平移函数y=-x²可以得到函数y=x²-8x-7的图像
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![通过配方把下列函数化为y=a(x+m)²+k的形式并求出函数最大最小值 ①y=3x²+2x ②y=(5/2)x-2-3x²③怎样平移函数y=-x²可以得到函数y=x²-8x-7的图像](/uploads/image/z/3766393-1-3.jpg?t=%E9%80%9A%E8%BF%87%E9%85%8D%E6%96%B9%E6%8A%8A%E4%B8%8B%E5%88%97%E5%87%BD%E6%95%B0%E5%8C%96%E4%B8%BAy%3Da%EF%BC%88x%2Bm%EF%BC%89%26%23178%3B%2Bk%E7%9A%84%E5%BD%A2%E5%BC%8F%E5%B9%B6%E6%B1%82%E5%87%BA%E5%87%BD%E6%95%B0%E6%9C%80%E5%A4%A7%E6%9C%80%E5%B0%8F%E5%80%BC+%E2%91%A0y%3D3x%26%23178%3B%2B2x+%E2%91%A1y%3D%EF%BC%885%2F2%EF%BC%89x-2-3x%26%23178%3B%E2%91%A2%E6%80%8E%E6%A0%B7%E5%B9%B3%E7%A7%BB%E5%87%BD%E6%95%B0y%3D-x%26%23178%3B%E5%8F%AF%E4%BB%A5%E5%BE%97%E5%88%B0%E5%87%BD%E6%95%B0y%3Dx%26%23178%3B-8x-7%E7%9A%84%E5%9B%BE%E5%83%8F)
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