Aide moi s'il vous plaît je vous remercie pour votre réponse rapide ​

Bonjour,

Simplifier:

Ex 1:

A= 6a+3b

B= 2a-ab

C= 5xy

D= 24 ab

Tu continues comme les exemples

Ex 2:

Développer les expressions:

A= 3x+9

B= 5y-5x

C= 2x-x²

D= 6y²+8y

E= 2x-6-2y

F= l'expression possible incomplète

G= 3a+3b²

H= 2ab²-2b²

Ex 3:

Factoriser les expressions:

A= 2(x+6)

B= 4(x-6)

C= x(3x+2)

D= 5(y-2)

E= b(25+b)

F= x(1-2x)

G= 3(5y-1)

H= 5(5x+2y-1)

Bonjour ! ;)

Réponse :

Exercice 1 :

A = 3 * b + 6 * a

A = 3b + 6a

B = 2 * a - a * b

B = 2a - ab

C = 5 * y * z

C = 5yz

D = 4 * ab * 2 * 3

D = 4 * 2 * 3 * ab

D = 24ab

E = 6 * z * z * a

E = 6z²a

F = 5 * p * b

F = 5pb

G = 6 * 5 * a

G = 30a

H = a * 4 + b * 6

H = 4a + 6b

Exercice 2 :

A = 3 (x + 3)

A = 3 * x + 3 * 3

A = 3x + 9

B = 5 (y - x)

B = 5 * y + 5 * (- x)

B = 5y - 5x

C = x (2 - x)

C = x * 2 + x * (- x)

C = 2x - x²

D = 2y (3y + 4)

D = 2y * 3y + 2y * 4

D = 6y² + 8y

E = 2 (x - 3 - y)

E = 2 * x + 2 * (- 3) + 2 * (- y)

E = 2x - 6 - 2y

F = x (2x + 4y - 3)

F = x * 2x + x * 4y + x * (- 3)

F = 2x² + 4xy - 3x

G = 3 (a + b²)

G = 3 * a + 3 * b²

G = 3a + 3b²

H = b² (2a - 2)

H = b² * 2a + b² * (- 2)

H = 2ab² - 2b²

Exercice 3 :

A = 2x + 12

A = 2 * x + 2 * 6

A = 2 (x + 6)

B = 4x - 24

B = 4 * x - 4 * 6

B = 4 (x - 6)

C = 3x² + 2x

C = 3 * x * x + 2 * x

C = x (3x + 2)

D = 5y - 10

D = 5 * y - 5 * 2

D = 5 (y - 2)

E = 25b + b²

E = 25 * b + b * b

E = b (25 + b)

F = x - 2x²

F = x * 1 - 2 * x * x

F = x (1 - 2x)

G = 15y - 3

G = 3 * 5y - 3 * 1

G = 3 (5y - 1)

H = 25x + 10y - 5

H = 5 * 5x + 5 * 2y - 5 * 1

H = 5 (5x + 2y - 1)