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Answered

Réduire les expressions suivantes
A = 12x+3x-5x
B = 6x-x+2x-10x
C = 5a+4b-3a-8b
D = 2x2+3x+7x2-X
Bonjour besoin d’aide s’il vous plaît merci

Sagot :

Bjr,

12x + 3x - 5x = (12 + 3 - 5)x = 10x

6x - x + 2x - 10x = (6 - 1 + 2 - 10)x = -3x

5a + 4b - 3a - 8b = 5a - 3a + 4b - 8b = 2a - 4b

2x² + 3x + 7x² - x = 2x² + 7x² + 3x - x = 9x² + 2x

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