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Answered

A = 3 (1 + 6) + 2
B = 4 + 3(2x - 2)
C = 7 (2x + 2) - 6
D = 9( - 6) + 2x
5(2 - x) + 8
F = 2(3 + x) + 8 (7-x) +4(x-1)

2)
A = 3 (x - 6) + 2
C = 7 x (x + 2) – 6x au carré
B = x (x - 2) + x
D= 9 x (x - 6) + 2 x au carré
E = 2 x (3 + 5x) + 8x (7 - x) + 4 (x - 1)

Bonjour, dans toutes les équations se ne sont que des x et non des multipliés. excuser moi de la confusion. merci pour vos réponses​

Sagot :

GEGE000

Bonjour,

A = 3 (1 + 6) + 2

A = 3 (7) + 2

A = 3 × 7 + 2

A = 21 + 2

A = 23

B = 4 + 3(2x - 2)

B = 4 + 3 × 2x + 3 × (-2)

B = 4 + 6x - 6

B = 6x - 2

C = 7 (2x + 2) - 6

C = 7 × 2x + 7 × 2 - 6

C = 14x + 14 - 6

C = 14x - 8

D = 9(-6) + 2x

D = - 54 + 2x

E = 5(2 - x) + 8

E = 5 × 2 + 5 × (-x) + 8

E = 10 - 5x + 8

E = -5x + 18

F = 2(3 + x) + 8(7 - x) + 4(x - 1)

F = 2 × 3 + 2 × x + 8 × 7 + 8 × (-x) + 4 × x + 4 × (-1)

F = 6 + 2x + 56 - 8x + 4x - 4

F = -2x + 58

2) à toi de jouer :)

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