Bonjour,
Factorise les expressions :
4x²+4x+4 = 4 (x² + x + 1)
9y²-3y+27 = 3 (y² - y + 9)
8x+12y = 4 (2x + 3y)
24x+30y-18z = 6 (4x + 5y - 3z)
2x²+8x = 2x (x + 4)
-5x²+10x+15 = (- 5x + 15) (x + 1)
3y³+y² = y² (3y + 1)
49a-56b = 7 (7a - 8b)
15xy+30xz = 15x (y + 2x)
25x²y-15xy² = 5xy (5x - 3y).