Salut! Tu dois utiliser l'identité remarquable a²-b² = (a+b)(a-b)
M = y²-6² = (y+6)(y-6)
O = (12t)²-25 = (12t)²-5² = (12t - 5)(12t+5)
Q = (11z)²-144 = (11z)²-12² = (11z-12)(11z+12)
N = 6²- x² + 1 =(6-x)(6+x)
P = 9²-(2t)² = (9+2t)(9-2t)
R =(8y)²-(3t)² = (8y -3t)(8y+3t)
