Articles
Register
Sign In
Search
mouni306
@mouni306
January 2021
1
113
Report
existe-t-il deux nombres dont la somme est égale à 8 et le produit égale à 5?
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
caylus
Verified answer
Bonjour,
Soit x le premier, 8-x le deuxième
On a: x(8-x)=5
=>-x²+8x=5
=>x²-8x+5=0
=>x²-2*4x+16-16+5=0
=>(x-4)²-11=0
=>((x-4)-√11)((x-4)+√11)=0
=>x=4+√11 et x=4-√11
2 votes
Thanks 4
mouni306
j'ai rien comprit mais en toutcas merci beaucoups
More Questions From This User
See All
mouni306
January 2021 | 0 Respostas
Responda
×
Report "existe-t-il deux nombres dont la somme est égale à 8 et le produit égale à 5?.... Pergunta de ideia de mouni306"
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 © 2025 ELIBRARY.TIPS - All rights reserved.
Lista de comentários
Verified answer
Bonjour,Soit x le premier, 8-x le deuxième
On a: x(8-x)=5
=>-x²+8x=5
=>x²-8x+5=0
=>x²-2*4x+16-16+5=0
=>(x-4)²-11=0
=>((x-4)-√11)((x-4)+√11)=0
=>x=4+√11 et x=4-√11