Sagot :

maudmarine

Bonsoir

Factoriser les expressions ci-dessous

E(x)=81x² -54x+9

E (x) = 9 (3x - 1)²

G(x)=36x² +84x+49

G (x) = (6x + 7)²

H(x)=(7x-2)(3x+5)-(7x-2)²

H (x) = (7x - 2) [(3x + 5) - (7x - 2)]

H (x) = (7x - 2) (3x + 5 - 7x + 2)

H (x) = (7x - 2) (- 4x + 7)