1.已知ab=60,a²+b²=169,求a²-b²的值2.已知2a×27b×37c=1998,其中a、b、c为自然数,求(a-b-c)2008的值(PS:此处前面乘法中的abc都为指数)3.若3m-2n+2=0,则8m/4n=?(PS:此处的除法中,m、n为指数
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![1.已知ab=60,a²+b²=169,求a²-b²的值2.已知2a×27b×37c=1998,其中a、b、c为自然数,求(a-b-c)2008的值(PS:此处前面乘法中的abc都为指数)3.若3m-2n+2=0,则8m/4n=?(PS:此处的除法中,m、n为指数](/uploads/image/z/4108983-15-3.jpg?t=1.%E5%B7%B2%E7%9F%A5ab%3D60%2Ca%26%23178%3B%2Bb%26%23178%3B%3D169%2C%E6%B1%82a%26%23178%3B-b%26%23178%3B%E7%9A%84%E5%80%BC2.%E5%B7%B2%E7%9F%A52a%C3%9727b%C3%9737c%3D1998%2C%E5%85%B6%E4%B8%ADa%E3%80%81b%E3%80%81c%E4%B8%BA%E8%87%AA%E7%84%B6%E6%95%B0%2C%E6%B1%82%EF%BC%88a-b-c%EF%BC%892008%E7%9A%84%E5%80%BC%EF%BC%88PS%3A%E6%AD%A4%E5%A4%84%E5%89%8D%E9%9D%A2%E4%B9%98%E6%B3%95%E4%B8%AD%E7%9A%84abc%E9%83%BD%E4%B8%BA%E6%8C%87%E6%95%B0%EF%BC%893.%E8%8B%A53m-2n%2B2%3D0%2C%E5%88%998m%2F4n%3D%3F%EF%BC%88PS%3A%E6%AD%A4%E5%A4%84%E7%9A%84%E9%99%A4%E6%B3%95%E4%B8%AD%2Cm%E3%80%81n%E4%B8%BA%E6%8C%87%E6%95%B0)
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