Articles
Register
Sign In
Search
Anissalhk
@Anissalhk
January 2021
1
103
Report
Pouvez vous m'aider pour l'exo 20
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
Christine17
EX20
A=(3-x)²-(3-x)(5+x)+5(9-x²)
1)
A=9+x²-6x-(15+3x-5x-x²)+45-5x²
A=9+x²-6x-15-3x+5x+x²+45-5x²
A=-3x²-4x+39
2)
A=(3-x)²-(3-x)(5+x)+5(9-x²)
A=(3-x)²-(3-x)(5+x)+5(3-x)(3+x)
A=(3-x)((3-x)-(5+x)+5(3+x))
A=(3-x)(3-x-5-x+15+5x)
A=(3-x)(3x+13)
3a)
A=0
(3-x)(3x+13)=0
x=3 ou 3x=-13
x=3 ou x=-13/3
b)
A=39
-3x²-4x+39=39
-3x²-4x=0
x(-3x-4)=0
x=0 ou x=-4/3
0 votes
Thanks 1
More Questions From This User
See All
Anissalhk
January 2021 | 0 Respostas
Je pourrais avoir de l'aide Svp je n'ai pas compris
Responda
Anissalhk
January 2021 | 0 Respostas
Est ce que cela est correct ? Merci .
Responda
Anissalhk
January 2021 | 0 Respostas
Responda
Anissalhk
January 2021 | 0 Respostas
Responda
Anissalhk
January 2021 | 0 Respostas
Responda
Anissalhk
January 2021 | 0 Respostas
Responda
Anissalhk
January 2021 | 0 Respostas
Responda
Anissalhk
January 2021 | 0 Respostas
Responda
Anissalhk
January 2021 | 0 Respostas
Responda
Anissalhk
January 2021 | 0 Respostas
Responda
×
Report "Pouvez vous m'aider pour l'exo 20.... Pergunta de ideia de Anissalhk"
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
A=(3-x)²-(3-x)(5+x)+5(9-x²)
1)
A=9+x²-6x-(15+3x-5x-x²)+45-5x²
A=9+x²-6x-15-3x+5x+x²+45-5x²
A=-3x²-4x+39
2)
A=(3-x)²-(3-x)(5+x)+5(9-x²)
A=(3-x)²-(3-x)(5+x)+5(3-x)(3+x)
A=(3-x)((3-x)-(5+x)+5(3+x))
A=(3-x)(3-x-5-x+15+5x)
A=(3-x)(3x+13)
3a)
A=0
(3-x)(3x+13)=0
x=3 ou 3x=-13
x=3 ou x=-13/3
b)
A=39
-3x²-4x+39=39
-3x²-4x=0
x(-3x-4)=0
x=0 ou x=-4/3