已知y=y1+y2,y1与(根号x)成正比例,y2与(x方)成反比例,且当x=1时,y=-12,当x=4时,y=7.求y与x的函联立之后的解法也请写出来.已知y=y1+y2,y1与(根号x)成正比例,y2与(x方)成反比例,且当x=1时
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![已知y=y1+y2,y1与(根号x)成正比例,y2与(x方)成反比例,且当x=1时,y=-12,当x=4时,y=7.求y与x的函联立之后的解法也请写出来.已知y=y1+y2,y1与(根号x)成正比例,y2与(x方)成反比例,且当x=1时](/uploads/image/z/9941131-19-1.jpg?t=%E5%B7%B2%E7%9F%A5y%3Dy1%2By2%2Cy1%E4%B8%8E%EF%BC%88%E6%A0%B9%E5%8F%B7x%EF%BC%89%E6%88%90%E6%AD%A3%E6%AF%94%E4%BE%8B%2Cy2%E4%B8%8E%EF%BC%88x%E6%96%B9%EF%BC%89%E6%88%90%E5%8F%8D%E6%AF%94%E4%BE%8B%2C%E4%B8%94%E5%BD%93x%3D1%E6%97%B6%2Cy%3D-12%2C%E5%BD%93x%3D4%E6%97%B6%2Cy%3D7.%E6%B1%82y%E4%B8%8Ex%E7%9A%84%E5%87%BD%E8%81%94%E7%AB%8B%E4%B9%8B%E5%90%8E%E7%9A%84%E8%A7%A3%E6%B3%95%E4%B9%9F%E8%AF%B7%E5%86%99%E5%87%BA%E6%9D%A5.%E5%B7%B2%E7%9F%A5y%3Dy1%2By2%EF%BC%8Cy1%E4%B8%8E%EF%BC%88%E6%A0%B9%E5%8F%B7x%EF%BC%89%E6%88%90%E6%AD%A3%E6%AF%94%E4%BE%8B%EF%BC%8Cy2%E4%B8%8E%EF%BC%88x%E6%96%B9%EF%BC%89%E6%88%90%E5%8F%8D%E6%AF%94%E4%BE%8B%EF%BC%8C%E4%B8%94%E5%BD%93x%3D1%E6%97%B6)
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