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Sagot :

TEAMCE

Bonjour,

développer et reduire les expressions:

A = -6x(-5x - 6)

A = -6x*(-5x) + (-6x)*(-6)

A = 30x² + 36x

B = (-x + 9) * 6

B = 6*(-x) + 6*9

B = -6x + 54

C = 9x(-3x - 6)

C = 9x*(-3x) + 9x*(-6)

C = -27x² - 54x

D = (-4x + 2) * 5

D = 5*(-4x) + 5*2

D = -20x + 10

* = multiplication

Bonne journée.

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