Bonjour,
Factoriser les expressions suivantes :
4b² + 7b = b (4b + 7)
15x – 9 = = 3 (5x - 3)
4x + 28 = 4 (x + 7)
16x² + 16 = 16 (x² + 1)
7x – 42 = 7 (x - 6)
4y + 6 = 2 (2y + 3)
8 + 2n = 2 (4 + n)
7x² – 5x = x (7x - 5)
30a +36a² = 6a (5 + 6a)
-2x² – 2 = - 2 (x² + 1)
x² + x = x (x + 1)
