Réponses

2012-11-21T13:51:28+01:00

(24x^2-84x) - (10x^2-35)

=(24x^2-84x - 10x^2+35)

=14x^2-84x+35

 

=> x(14x-84)+35

 

-3/7(14*-3/7)+35

(resou a la calculatrice pr la fin )