Pouvez-vous m’aider au 24 svp

Bonjour,

A)

15 -12x

B)

-6y +16

C)

-4a -16

D)

3x -x²

E)

2t² +5t

F)

3y² -6y

G)

x² +3x +7x +21 = x² +10x +21

H)

x² +2x -5x -10 = x² -3x -10

I)

2x² -8x +x -4 = 2x² -7x -4

J)

3x² -2x -9x +6 = 3x² -11x +6

Bonjour

A = 3 (5 - 4x)

A = 15 - 12x

B = - 2 (3y - 8)

B = - 6y + 16

C = - 4 (a + 4)

C = - 4a - 16

D = x (3 - x)

D = 3x - x²

E = t (2t + 5)

E = 1t² + 5t

F = 3y (y - 2)

F = 3y² - 6y

G = (x + 7) (x + 3)

G = x² + 3x + 7x + 21

G = x² + 10x + 21

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

H = x² + 2x - 5x - 10

H = x² - 3x - 10

I = (2x + 1) (x - 4)

I = 2x² - 8x + x - 4

I = 2x² - 7x - 4

J = (x - 3) (3x - 2)

J = 3x² - 2x - 9x + 6

J = 3x² - 11x + 6.