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Sagot :

Bonjour

Développer les expressions suivantes :

A = 5 (2x + 3) = 10x + 15

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

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

D = 2x (- x - 3) = - 2x² - 6x.

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