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Sagot :

TEAMCE

Bonjour,

Développer les expressions suivantes:

k(a + b) = ka + kb

A = 3(x + 7)

A = 3x + 21

B = 4(2x - 3)

B = 8x - 12

C = -11(-x - 5)

C = 11x + 55

D = x(2x + 9)

D = 2x² + 9x

E = 3x(6 + 4x)

E = 18x + 12x²

E = 12x² + 18x

F = -2x(10 - 5x)

F = -20x + 10x²

F = 10x² - 20x

Bonne journée.

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