Sagot :
Bonjour,
A = x²- 16 = x² - 4² = (x - 4)(x + 4)
B = 1 - y ² = 1² - y² = (1 - y)(1 + y)
C = 100x² - 9 = (10x)² - 3² = (10x - 3)(10x + 3)
D = 36 - 81z² = 6² - (9z)² = (6 - 9z)(6 + 9z) = (-9z + 6)(9z + 6)
bonjour
A=x²-16= (x+4)(x-4)
b=1-y²=(1+y)(1-y)
c=100x²-9=(10x+3)(10x-3)
d=36-81z²=9(2+3z)(2-3z)