代数式的含义：什么是代数式？

代数式：由数和表示数的字母经有限次加、减、乘、除、乘方和开方等代数运算所得的式子，或含有字母的数学表达式也称为代数式。单个数字或数字连接的整式也是代数式。

例如：ax+2b，－2/3，b²/26，√a+√2等。

1、不包括不等号（≠、≤、≥、<、>、≮、≯）、约等号≈。

2、可以有绝对值。例如：|x|，|-2.25| 等。

推荐阅读：
Do You Know The Top Web Hosting and SEO Trends For 2016?　 8 Ways Bloggers Can Make Money on the Side　 How Bloggers Can Survive This Economic Recession　 How to Target your Audience Right? Use Segmentation　 $7,000-A-Month Blogger Loses It All With One Post　 4 Ways to Become a More Organized Blogger　 Feel Like a Change? Why Not Try the Life of an Expat-preneur?　 4 Tech Trends You Need To Get Prepared For　 Blogger Sentenced To Two Years In Prison After Insulting Preside　 Back to Basics: Blogging and Copyright Infringement