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Sagot :

MAUDMARINE

Bonjour

Développer les expressions suivantes :

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 - 15z + 56z - 42

Z = 5z² + 36z - 42.

LOULAKAR

Réponse :

Explications étape par étape

Bonjour

développer des expressions suivantes :

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

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

V = 2 - 12x + 11 - 36

V = -10x - 25

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

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

W = 12x - 2x + 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 = -19y + 6y + 27 - 14

Y = -13y + 13

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

Z = -5z + 5z^2 - 15z - 42 + 56z

Z = 5z^2 - 20z + 56z - 42

Z = 5z^2 + 36z - 42

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