1) Développer puis réduire les expressions suivantes : A= 3x(2x - 5) B = (3x + 4)(2x + 7) CF (2x-3)(5x+3)​

By: USER3753
27 Agustus 2025 mathematiques 5 minutes
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Grade: Education Subject: mathematiques
1) Développer puis réduire les expressions suivantes : A= 3x(2x - 5) B = (3x + 4)(2x + 7) CF (2x-3)(5x+3)​
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Bonsoir;

A= 3x(2x - 5)

= 6x² -15x

B = (3x + 4)(2x + 7)

= 6x² +21x +8x +28

= 6x² +29x +28

C (2x-3)(5x+3)​

= 10x² +6x -15x -9

= 10x²  - 9x -9

Answered on 27 Agustus 2025

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