Exercice 2
On considère l'expression suivante : 2x + 5(3x-4)
• Calculer l'expression pour :
a. x = 2
b. x = 5
Evaluation d'une expre
c. x =
10
d. x = -5

By: USER1619
27 Agustus 2025 mathematiques 5 minutes
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Question

Grade: Education Subject: mathematiques
Exercice 2
On considère l'expression suivante : 2x + 5(3x-4)
• Calculer l'expression pour :
a. x = 2
b. x = 5
Evaluation d'une expre
c. x =
10
d. x = -5
Asked by:
200 Viewed 200 Answers

Answer (200)

Best Answer
(90)

17x-20

Explications étape par étape:

2x+15x-20;17x-20

Answered on 27 Agustus 2025
(303)
Bonjour,
a) 2x2+5(3x2-4)
= 4+5(6-4)
=4+5x2
=4+10
=14
b)
10+5(3x5-4)
10+5(15-4)
10+5x11
10+ 55
65
C) 2x10+5(3x10-4)
20+5(30-4)
20+5x26
20+130
=150
D) 2x-5+5(3x(-5)-4)
=10+5(-15-4)
=10+5-19
=15-19
=-4
Answered on 27 Agustus 2025

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