bjr
B = 5x - 5 - 3x - 24x
= 5x - 3x - 24x - 5
= 5x - 27x - 5
= -22x - 5
puisque -6 * 4x = - 24x
et
C = 4y² - 2y² + 3y - 5y - 6
= 2y² - 2y - 6
puisque -y * 5 = -5y
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bjr
B = 5x - 5 - 3x - 24x
= 5x - 3x - 24x - 5
= 5x - 27x - 5
= -22x - 5
puisque -6 * 4x = - 24x
et
C = 4y² - 2y² + 3y - 5y - 6
= 2y² - 2y - 6
puisque -y * 5 = -5y