Articles
Register
Sign In
Search
Sarah227
@Sarah227
May 2019
2
64
Report
( calcule littéral) bonjour je ne comprends pas l'exercice 17 pourriez-vous m'aider svp voici l'énoncé :
1. calculer 39² en développant (40-1)²
2. calculer de la même façon :
a. 99²
b. 29²
c. 195²
merci d'avance
Please enter comments
Please enter your name.
Please enter the correct email address.
Agree to
terms and service
You must agree before submitting.
Send
Lista de comentários
mehdi0609
2+2=4
voila la réponse à ta queston
5x5=25
0 votes
Thanks 0
Commentaires (9)
Bonjour
1. calculer 39² en développant (40-1)²
(a-b)² = a² - 2ab +b²
(40-1)² = 40² - 2x40x1 + 1² = 1600 - 80 +1 = 1520 +1 = 1521
2.
a. 99² = (100 - 1)² =...
b. 29² = (30 - 1)² =...
c. 195² = (200 - 5)² = ...
1 votes
Thanks 1
More Questions From This User
See All
sarah227
January 2021 | 0 Respostas
bonjours je comprend pas l'exercice je suis en 4eme exo: 3 et 4 svp aidez moi svp merci d'avance
Responda
sarah227
January 2021 | 0 Respostas
aider moi svp merci d'avance !
Responda
sarah227
January 2021 | 0 Respostas
aider moi svp merci d'avance !!
Responda
sarah227
January 2021 | 0 Respostas
aider moi svp merci d'avance !!
Responda
sarah227
January 2021 | 0 Respostas
aider moi s.v.p !! merci d'avance
Responda
sarah227
January 2021 | 0 Respostas
Aider moi pour exercice 15 et 16 merci d'avance
Responda
sarah227
January 2021 | 0 Respostas
Responda
sarah227
January 2021 | 0 Respostas
Responda
sarah227
January 2021 | 0 Respostas
Bonjour equation en maths aider moi svp 3eme merci davance
Responda
sarah227
January 2021 | 0 Respostas
Responda
×
Report "( calcule littéral) bonjour je ne comprends pas l'exercice 17 pourriez-vous m'aider svp voici l'énon.... Pergunta de ideia de Sarah227"
Your name
Email
Reason
-Select Reason-
Pornographic
Defamatory
Illegal/Unlawful
Spam
Other Terms Of Service Violation
File a copyright complaint
Description
Helpful Links
Sobre nós
Política de Privacidade
Termos e Condições
direito autoral
Contate-Nos
Helpful Social
Get monthly updates
Submit
Copyright © 2024 ELIBRARY.TIPS - All rights reserved.
Lista de comentários
voila la réponse à ta queston
5x5=25
1. calculer 39² en développant (40-1)²
(a-b)² = a² - 2ab +b²
(40-1)² = 40² - 2x40x1 + 1² = 1600 - 80 +1 = 1520 +1 = 1521
2. a. 99² = (100 - 1)² =...
b. 29² = (30 - 1)² =...
c. 195² = (200 - 5)² = ...