Bonjour,Développer et réduire seconde le plus vite possible merci
A=(3x-5)(x-3)
B=2(3x-1)(-x+7)
Merci

By: USER2439
27 Agustus 2025 mathematiques 5 minutes
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Question

Grade: Education Subject: mathematiques
Bonjour,Développer et réduire seconde le plus vite possible merci
A=(3x-5)(x-3)
B=2(3x-1)(-x+7)
Merci
Asked by:
121 Viewed 121 Answers
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Answer (121)

Best Answer
(389)

bjr

on applique la formule

(a+b) (c+d) = ac + ad + bc + bd

on aura donc

A = 3x * x + 3x * (-3) - 5 * x - 5 * (-3)

on calcule

A = 3x² - 9x - 5x + 15

et donc

A = 3x²- 14x + 15

pour le B vous aurez à développer (6x - 2) (- x + 7)

hurry up

Answered on 27 Agustus 2025

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