---
alias: [ "identité remarquable" ]
---
up:: [[analyse|analyse]]
title:: "$a^{2}+2ab+b^{2} = (a+b)^{2}$", "$a^{2} - 2ab+b^{2} = (a-b)^{2}$", "$a^{2} - b^{2} = (a+b)(a-b)$"
#s/maths/analyse 

---

> [!definition] 
>  - $a^{2}+2ab+b^{2} = (a+b)^{2}$
>  - $a^{2} - 2ab+b^{2} = (a-b)^{2}$
>  - $a^{2} - b^{2} = (a+b)(a-b)$
^definition