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Sagot :

TEAMCE

Bonjour,

Développer et réduire les expressions:

A = 3(x + 6)

A = 3*x + 3*6

A = 3x + 18

B = -8(-5 - 3y)

B = -8*(-5) + (-8)*(-3y)

B = 40 + 24y

B = 24y + 40

C = (9 - 3t) * 4t

C = 4t*9 + 4t*(-3t)

C = 36t + (-12t²)

C = -12t² + 36

D = 3x - 5 + 5(2x - 3)

> d'abord la multiplication

D = 3x - 5 + 5*2x + 5*(-3)

D = 3x - 5 + 10x - 15

D = 13x - 20

* = multiplication

Bonne journée.

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