bonjour, comment développer et réduire
B(x)=(3x-2)(x+9)-(x+9)2
merci beaucoup c'est urgent

By: USER8435
25 Agustus 2025 mathematiques 5 minutes
4.5
102 views 102 comments 13 shares

Question

Grade: Education Subject: mathematiques
bonjour, comment développer et réduire
B(x)=(3x-2)(x+9)-(x+9)2
merci beaucoup c'est urgent
Asked by:
102 Viewed 102 Answers

Answer (102)

Best Answer
(194)
Bonsoir,

B(x) = (3x-2)(x+9)-(x+9)²
       = 3x² + 27x - 2x - 18 - (x²+18x+81)
       = 3x² + 27x - 2x - 18 - x² - 18x - 81
       = 2x² + 7x - 99
Answered on 25 Agustus 2025
(142)
bonsoir

B(x) = 3 x² + 27 x - 2 x - 18 - ( x² + 18 x + 81)
B(x) = 3 x² + 25 x - 18 - x² - 18 x - 81
B(x) = 2 x² + 7 x - 99
Answered on 25 Agustus 2025

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Maths.

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