1) Démontrer que, pour tout réels a et b, (a+b)² - 4ab = (a-b)² Ma réponse :
(a+b)² - 4ab
= a² - 2ab + b² - 4ab
= a² - 2ab + b²
= (a-b)²

Donc (a+b)² - 4ab = (a-b)² !!

est-ce juste ?
Please enter comments
Please enter your name.
Please enter the correct email address.
You must agree before submitting.

Helpful Social

Copyright © 2024 ELIBRARY.TIPS - All rights reserved.