svp voupouvez maidez ex24 25 p31​

Réponse :

Bonsoir,

Exo 24 :

A = 3(5-4X) = 15 - 12 X

B = -2 (3Y - 8) = -6Y + 16

C = -4 (A+4) = -4A - 16

D = X(3-X) = 3X -X²

E = T (2T+5) = 2T² + 5T

F = 3Y(Y-2) = 3Y² -6Y

Exo 25 :

G = (X+7) (X+3) = X² + 3X +7X + 21 = X² + 10X +21

H = (X-5) (X+2) = X² + 2X -5X -10 = X² -3X -10

I = (2X+1) (X-4) = 2X² - 8X + X -4 = 2X² -7X -4

J = (X-3) (3X-2) = 3X² -2X -9X +6 = 3X² -11X +6