Vois pouvait développer le 56 svp

Bonsoir,

V = 11 + 2 (x - 6) + 4 (- 3x - 6)

V = 11 + 2x - 12 - 12x - 24

V = 2x - 12x + 11 - 12 - 24

V = - 10x - 25

W = - 2 (x - 5) - 3 (7 - 4x)

W = - 2x + 10 - 21 + 12x

W = - 2x + 12x + 10 - 21

W = 10x - 11

X = 8 + 2y - 5 (2y - 6) + 4

X = 8 + 2y - 10y + 30 + 4

X = 2y - 10y + 8 + 30 + 4

X = - 8y + 42

Y = - 7y - 4 (3y - 6) + 3 + 2 (3y - 7)

Y = - 7y - 12y + 24 + 3 + 6y - 14

Y = - 7y - 12y + 6y + 24 + 3 - 14

Y = - 13y + 13

Z = - 5z + 5z (z - 3) - 7 (6 - 8z)

Z = 5z + 5z² - 15z - 42 + 56z

Z = 5z² + 5z + 56z - 15z - 42

Z = 5z² + 46z - 42.

Bonsoir,

Développer

A= 11-2x-12-12x-24

A= -14x-25

V= -2x+10-21+12x

V= 10x-11

X= 8+2y-10y+30+4

x= -8y +42

Y= -7y-12y+24+3+6y-14

Y= -13y+13

Z= -5z+5z²-15z-42+56z

Z= 5z²+36z-42