Réponses

2014-05-07T18:34:59+02:00
Salut :)

A= 36-25x²
A=
-(5 x-6) (5 x+6)

B= 100+60x+9x²
B= x(9 x+60)+100

C= 2i(i+1)+2i(2+i)
C= 2(-2+3 i)

D= b²-10b+25
D=
(b-5)² = (b-5)(b-5)

E= (2-x)²+(2-x)(9+x)
E= -11(x-2)

F= (5x+1)²-81
F=
x(25 x+10)-80

G= (7d+2)²- (3d+4)²
G=
d (40 d+4)-12

Bye