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代数式

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代数式(英语:Algebraic expression)是指用基本的运算符号,例如乘方开方等,把数或表示数字的字母连起来的式子,即用字母表示常数变量表达式,其中也可包含数字

分类

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代数式在实数范围内分为有理式、无理式,其中有理式包括整式分式,整式又包括单项式多项式

书写规则

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  • 数字相乘除必须写出得数。
  • 数字和字母或是两个以上的字母相乘应并列写。例如“×”应写成“”。
  • 数字和字母相除时应按照分数形式书写。例如“”。
  • 如数字出现非整的情况,则要写成最简分数,数值大于1则要写成假分数

参阅

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代数式
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