Sagot :
Bonsoir,
Factoriser les expressions suivantes :
x² – 16 = (x - 4) (x + 4)
(x + 1)² - 4 = (x + 1 - 2) (x + 1 + 2) = (x - 1) (x + 3)
(x - 2)² – 9 = (x - 2 - 3) (x - 2 + 3) = (x - 5) (x + 1)
(3x – 1)² - 1 = (3x - 1 - 1) (3x - 1 + 1) = 3x (3x - 2)