Answered

FACTORISE LES SOMMES

 

C = 3 x u - 3 x v + 3 x 9

 

D = 13 x a - 8 x 2 x b + (12+ 4) x c

 

DEVELOPPE LES PRODUITS SUIVANTS

 

7 x (a + x -3) ;

(3 + t ) x 9;

12 x (x-y-z)

 

Sagot :

INFOVEST

C=3(u-v+9)

D=16(13a/16 -b +c)

 

7 x (a + x -3) =7a+7x-21

(3 + t ) x 9=27+9t

12 x (x-y-z)=12x-12y-12z