a. 2x(4x-5)=0 b. (3-2n)(n+4)=0

By: USER6573
27 Agustus 2025 mathematiques 5 minutes
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Question

Grade: Education Subject: mathematiques
a. 2x(4x-5)=0 b. (3-2n)(n+4)=0
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Best Answer
(199)

bonjour

2x(4x-5)=0

un facteur est nul

x = 0 ou x = 5/4

b. (3-2n)(n+4)=0

n = 3/2 ou - 4

Answered on 27 Agustus 2025
(400)

Bonjour;

équation produit nul

a. 2x(4x-5)=0

soit

2x=0

x = 0

soit

4x-5 = 0

4x = 5

x = 5/4

x =1,25

b. (3-2n)(n+4)=0

soit

3-2n = 0

3 = 2n

n = 3/2

n= 1,5

soit

n+4 = 0

n= -4

Answered on 27 Agustus 2025

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