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Développe les expressions suivantes, D A = 2x(3x - 1) B = 4(5 - x) C = 2y(3 - 2y) D = 6(5x + 6) E = 2x(6x +9) F = 8x(1+x)​

Sagot :

A = 2x (3x - 1)

= 6x² - 2x

B = 4 (5-x)

= 20 - 4x

C = 2y(3 - 2y)

= 6y - 4y²

D = 6(5x + 6)

= 30x + 36

E = 2x(6x +9)

= 12x² + 18x

F = 8x(1+x)​

= 8x + 8x²

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