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ALOX93380
Answered

bonjour est ce que vous pourriez m'aider ?:

Développer : A = 3 (7 x + 2)
B = 5x (x - 1)
C = 6x (2 + 9x)
E = -82 (4 - 3z)
F = 4 + 3(2Y - 2)
D = 3y (- 4 + 6y)
G = 3x - 5 + 5 (2x - 2)
H=-5 (6 - 3z) - 9 + z
1 = 11 + 2(x - 6) + 4(-3x-6)​

Sagot :

MAUDMARINE

Bonjour

Développer :

A = 3 (7 x + 2) = 21x + 6

B = 5x (x - 1) = 5x² - 5x

C = 6x (2 + 9x) = 12x + 54x²

E = -82 (4 - 3z) = - 328 + 246z

F = 4 + 3(2Y - 2)  = 4 + 6y - 6 = 6y - 2

D = 3y (- 4 + 6y) = - 12y + 18y²

G = 3x - 5 + 5 (2x - 2) = 3x - 5 + 10x - 10 = 13x - 15

H=-5 (6 - 3z) - 9 + z = - 30 + 15z - 9 + z = 16z - 39

1 = 11 + 2(x - 6) + 4(-3x-6)​ = 11 + 2x - 12 - 12x - 24 = - 10x - 25.

Réponse:

A = 21x + 6

B = 5x^2 - 5x

C = 12x + 54x^2

D = -12y + 18y^2

F = -2 + 6y

G = 13x - 15

H = 21 - 14z

1 = -10 - 23

je suis sûr de tout sauf le dernier.

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