Réponses

Meilleure réponse !
2013-03-15T19:02:39+01:00

A = 6x-18-3+5x

A = 11x -21

 

B = 5-2y+3y-7

B = y-2

 

C = 24+4z+(2z-z²-6+3z)

C = 24 +4z +2z -z² -6 +3z

C = -z² +9z +18

 

D = 6t²+4t-15t-10 - t² -6

D = 5t² -11t -16

2013-03-15T19:07:39+01:00
A= 6x-18-3+5x=11x-21
B=5-2y+3y-7=y-2
C=24+4z+2z-(z^2)-6+3z=(z^2)+10z18
D=(6t^2)+4t-15t-10-t(^2)-6=(5t^2)-11t-16

Z^2= Z puissance 2