两道数学题(因式分解)1.已知正数A、B、C 满足AB+A+B=BC+B+C=AC+AC+A=3.求(A+1)(B+1)(C+1)2.已知A+B=5 C的平方等于AB+B-9求C=?最好有讲解过程!!!
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![两道数学题(因式分解)1.已知正数A、B、C 满足AB+A+B=BC+B+C=AC+AC+A=3.求(A+1)(B+1)(C+1)2.已知A+B=5 C的平方等于AB+B-9求C=?最好有讲解过程!!!](/uploads/image/z/3757703-23-3.jpg?t=%E4%B8%A4%E9%81%93%E6%95%B0%E5%AD%A6%E9%A2%98%28%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3%291.%E5%B7%B2%E7%9F%A5%E6%AD%A3%E6%95%B0A%E3%80%81B%E3%80%81C+%E6%BB%A1%E8%B6%B3AB%2BA%2BB%3DBC%2BB%2BC%3DAC%2BAC%2BA%3D3.%E6%B1%82%EF%BC%88A%2B1%EF%BC%89%EF%BC%88B%2B1%EF%BC%89%EF%BC%88C%2B1%EF%BC%892.%E5%B7%B2%E7%9F%A5A%2BB%3D5+++C%E7%9A%84%E5%B9%B3%E6%96%B9%E7%AD%89%E4%BA%8EAB%2BB-9%E6%B1%82C%3D%3F%E6%9C%80%E5%A5%BD%E6%9C%89%E8%AE%B2%E8%A7%A3%E8%BF%87%E7%A8%8B%21%21%21)
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