(1)已知3x+5y-a-2的平方根+2x+3y-a的平方根=x+y-199的平方根乘199-x-y的平方根,求a的值.(2)若2倍a-1的平方根+3倍a+b+c的平方根—4倍1-a的平方根=9,求(a-b)的a-b次方.(3)若2倍(x的平方根+y-1的平方根+
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![(1)已知3x+5y-a-2的平方根+2x+3y-a的平方根=x+y-199的平方根乘199-x-y的平方根,求a的值.(2)若2倍a-1的平方根+3倍a+b+c的平方根—4倍1-a的平方根=9,求(a-b)的a-b次方.(3)若2倍(x的平方根+y-1的平方根+](/uploads/image/z/2396090-2-0.jpg?t=%281%29%E5%B7%B2%E7%9F%A53x%2B5y-a-2%E7%9A%84%E5%B9%B3%E6%96%B9%E6%A0%B9%2B2x%2B3y-a%E7%9A%84%E5%B9%B3%E6%96%B9%E6%A0%B9%3Dx%2By-199%E7%9A%84%E5%B9%B3%E6%96%B9%E6%A0%B9%E4%B9%98199-x-y%E7%9A%84%E5%B9%B3%E6%96%B9%E6%A0%B9%2C%E6%B1%82a%E7%9A%84%E5%80%BC.%EF%BC%882%EF%BC%89%E8%8B%A52%E5%80%8Da-1%E7%9A%84%E5%B9%B3%E6%96%B9%E6%A0%B9%2B3%E5%80%8Da%2Bb%2Bc%E7%9A%84%E5%B9%B3%E6%96%B9%E6%A0%B9%E2%80%944%E5%80%8D1-a%E7%9A%84%E5%B9%B3%E6%96%B9%E6%A0%B9%3D9%2C%E6%B1%82%EF%BC%88a-b%29%E7%9A%84a-b%E6%AC%A1%E6%96%B9.%EF%BC%883%EF%BC%89%E8%8B%A52%E5%80%8D%EF%BC%88x%E7%9A%84%E5%B9%B3%E6%96%B9%E6%A0%B9%2By-1%E7%9A%84%E5%B9%B3%E6%96%B9%E6%A0%B9%2B)
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