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Devoirsdecours
@Devoirsdecours
June 2021
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Développer et réduire les expressions suivante
Je n'y arrive pas aidez moi svp
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maudmarine
Verified answer
A = 5 (x + 3) + 3 (x - 2)
A = 5x + 15 + 3x - 6
A = 5x + 3x + 15 - 6
A = 8x + 9
B = 6 (2x + 5) + 5x - 7
B = 12x + 30 + 5x - 7
B = 12x + 5x + 30 - 7
B = 17x + 23
C = 3x² + 5x (- 9 + 4x) - x + 8
C = 3x² - 45x + 20x² - x + 8
C = 3x² + 20x² - 45x - x + 8
C = 23x² - 46x + 8
1 votes
Thanks 1
Devoirsdecours
merci énormément !
maudmarine
Avec plaisir :)
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Verified answer
A = 5 (x + 3) + 3 (x - 2)A = 5x + 15 + 3x - 6
A = 5x + 3x + 15 - 6
A = 8x + 9
B = 6 (2x + 5) + 5x - 7
B = 12x + 30 + 5x - 7
B = 12x + 5x + 30 - 7
B = 17x + 23
C = 3x² + 5x (- 9 + 4x) - x + 8
C = 3x² - 45x + 20x² - x + 8
C = 3x² + 20x² - 45x - x + 8
C = 23x² - 46x + 8