UEC Junior 2 · 数学 (Mathematics)
分式 (Algebraic Fractions)
处理分式运算时最关键的是通分步骤与负号的移动，许多同学常因忽略分子整体括号而导致正负号计算错误。只要熟练掌握分子分母的因式分解技巧，无论是加减法还是繁分式的化简都能迎刃而解。
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