(x-1)(x-2)(x-3)(x-4)>120怎么做?
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(x-1)(x-2)(x-3)(x-4)>120怎么做?
![(x-1)(x-2)(x-3)(x-4)>120怎么做?](/uploads/image/z/17037707-59-7.jpg?t=%28x-1%29%28x-2%29%28x-3%29%28x-4%29%3E120%E6%80%8E%E4%B9%88%E5%81%9A%3F)
120=2*3*4*5 x-1=5 x=6
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