Exercice 59 page46 aidez moi svp c des math

Bonsoir,

a/ (x+5)(x+3) = x²+3x+5x+15 (=>x²+8x+15)

b/ (3x+2)(x+4) = 3x²+12x+2x+8 => 3x²+14x+8

c/(x+3)(x-2) = x²-2x+3x-6 => x²+x-6

d/(x-4)(x-1) = x²-1x-4x+4 =>x²-5x+4

Bonne soirée