January 2021 0 75 Report
Bonsoir, Inéquation : 2x² - 7x + 5 ≤ 0
a = 2
b = -7
c = 5

Δ = 9 ; Δ > 0, donc l'inéquation admet deux racines, notées x1 et x2.

x1 = 5/2
x2 = 1

Factorisation du trinôme 2x² - 7x + 5
= a(x - x1)(x - x2)
= 2(x - 5/2)(x - 1)

On écrit S = {1 ; 5/2} et 1 ≤ x ≤ 5/2 ou d'une autre façon ?
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.