bonsoir pouvez vous m'aider pour ses questions svp​

Bonjour

A = 4 (2x + 1) + 7 (3x + 5)

A = 8x + 4 + 21x + 35

A = 29x + 39

B = - 5 (3x + 4) + 2 (4x - 5)

B = - 15x - 20 + 8x - 10

B = - 7x - 30

C = - 3 (6x - 2) + 4(5 - 7x)

C = - 18x + 6 + 20 - 28x

C = - 36x + 26.

Salut

[tex]\rule{6cm}{1mm}[/tex]

A = 4(2x + 1) + 7(3x + 5)

A = 8x + 4 + 21x + 35

A = 29x + 39

B = -5(3x + 4) + 2(4x - 5)

B = -15x + -20 + 9x - 10

B = -24x - 30

C = -3(6x - 2) + 4(5 - 7x)

C = -18x + 6 + 20 - 28x

C = -46x + 26