Sagot :

Skabetix

Bonsoir,

F = (t + 2)(3t + 5) + (2t - 1)² - (5t + 4)²

F = (t + 2)(3t + 5) + (2t - 1 + 5t + 4)(2t - 1 - 5t - 4 )

F = (t + 2)(3t + 5) + (7t + 3)(- 3t - 5)

F = (t + 2)(3t + 5) - (7t + 3)(3t + 5)

F = (3t + 5)(t + 2 - 7t - 3)

F = (3t + 5)(-6t - 1)

G = (t - 3)(5 - t) + (9t² - 24t - 9)

G = (t - 3)(5 - t) + 3(t - 3)(3t + 1)

G = (t - 3)(5 - t) + (9t + 3)(t - 3)

G = (t - 3)(5 - t + 9t + 3)

G = (t - 3)(8t + 8)

G = 8(t - 3)(t + 1)

caylus

Bonsoir,

[tex]G=(t-3)(5-t)+(9t^2-24t-9)\\\\=(t-3)(5-t)+3(t-3)(3t+1) \\\\=(t-3)(5-t+9t+3) \\\\=(t-3)(8t+8)\\\\=8(t-3)(t+1)\\[/tex]