在等式y=ax²+bx+c中,当x=1时,y=-2;当x=-1时,y=20;当x=3/2 x=1/3时,y相等.求A B CRT很急速度要过程
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![在等式y=ax²+bx+c中,当x=1时,y=-2;当x=-1时,y=20;当x=3/2 x=1/3时,y相等.求A B CRT很急速度要过程](/uploads/image/z/2715646-22-6.jpg?t=%E5%9C%A8%E7%AD%89%E5%BC%8Fy%3Dax%26sup2%3B%2Bbx%2Bc%E4%B8%AD%2C%E5%BD%93x%3D1%E6%97%B6%2Cy%3D%EF%BC%8D2%EF%BC%9B%E5%BD%93x%3D%EF%BC%8D1%E6%97%B6%2Cy%3D20%EF%BC%9B%E5%BD%93x%3D3%2F2++x%3D1%2F3%E6%97%B6%2Cy%E7%9B%B8%E7%AD%89.%E6%B1%82A+B+CRT%E5%BE%88%E6%80%A5%E9%80%9F%E5%BA%A6%E8%A6%81%E8%BF%87%E7%A8%8B)
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