Sagot :
A = 4r + 4t = 4(r+t)
B = 7z + 9z = z(7+9)
C = 3y² + 2y = y(3y+2)
D = 4x(x + 2) + 3(x+2) = (x+2) (4x+3)
E = -3y(y+6) + 7(y+6) = (y+6) (7-3y)
F = (x - 1) (5x + 4) + (3 + x) (x - 1) = (x-1) (5x+4+3+x) = (x-1) (6x+7)
Bonne journée.
A = 4r + 4t = 4(r+t)
B = 7z + 9z = z(7+9)
C = 3y² + 2y = y(3y+2)
D = 4x(x + 2) + 3(x+2) = (x+2) (4x+3)
E = -3y(y+6) + 7(y+6) = (y+6) (7-3y)
F = (x - 1) (5x + 4) + (3 + x) (x - 1) = (x-1) (5x+4+3+x) = (x-1) (6x+7)
Bonne journée.