x²-4x-21+8>x²+4x-5
8x
解下列不等式 (x+3)(x-7)+8>(x+5)(x-1)
解下列不等式 (x+3)(x-7)+8>(x+5)(x-1)
数学人气：558 ℃时间：2020-01-30 14:39:16
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