9 Reconnaître une différence de deux carrés
dans chaque expression, puis factoriser.
a.x²-81
b.x²-1
c. 9x² - 4

By: USER7859
27 Agustus 2025 mathematiques 5 minutes
4.5
134 views 134 comments 13 shares
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Question

Grade: Education Subject: mathematiques
9 Reconnaître une différence de deux carrés
dans chaque expression, puis factoriser.
a.x²-81
b.x²-1
c. 9x² - 4
Asked by:
134 Viewed 134 Answers
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Answer (134)

Best Answer
(252)

Bonsoir;

a.x²-81

différence

(x-9) x+9)

IR

b.x²-1

différence

(x-1)(x+1)

IR

c. 9x² - 4

différence

(3x-2) ( 3x+2)

IR

Answered on 27 Agustus 2025

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