CALOIUANDRA2
Answered

Bonjour
Qui pourait me aider svp
Merci
(×-2)(×+3)
(×-2)2
(2×+5)(3×-1)
(×-1)(×+1)

Sagot :

Bonjour,

(x-2)(x+3) = x²+3x-2x-6 = x²+x-6

(x-2)² = x²-4x+4

(2x+5)(3x-1) = 6x²-2x+15x-5 = 6x²+13x-5

(x-1)(x+1) = x² - 1