Articles
Register
Sign In
Search
evadtp
@evadtp
June 2021
1
95
Report
1. Etudier le signe du produit (3x-1)(2x+5).
2. En déduire les solutions de l'inéquation :
a) (3x-1)(2x+5)<0
b) (3x-1)(2x+5)≥0
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
Kitephx
1. (3x-1)(2x+5)
=3x*2x+3x*5-1*2x-1*5
=6x²+15x-2x-5
= 6x²+13x-5
delta = b² -4ac
= 13²-4*6*-5
=289
delta > 0 donc il y a deux solutions
x1 =
(-b+Delta)/(2*a) = -5/2 = -2.5
x2 = (-b-Delta)/(2*a)
= 1/3
Si tu as besoin de la question 2 je te la fais après :)
4 votes
Thanks 4
More Questions From This User
See All
evadtp
June 2021 | 0 Respostas
Responda
evadtp
June 2021 | 0 Respostas
Responda
×
Report "1. Etudier le signe du produit (3x-1)(2x+5).2. En déduire les solutions de l'inéquation :a) (3x-1)(2.... Pergunta de ideia de evadtp"
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
=3x*2x+3x*5-1*2x-1*5
=6x²+15x-2x-5
= 6x²+13x-5
delta = b² -4ac
= 13²-4*6*-5
=289
delta > 0 donc il y a deux solutions
x1 = (-b+Delta)/(2*a) = -5/2 = -2.5
x2 = (-b-Delta)/(2*a) = 1/3
Si tu as besoin de la question 2 je te la fais après :)