Réponses

2013-12-18T15:09:51+01:00
E= (2x^2-2*2x*6+6^2-(3x-11)2
E= 2x^2-4x*6+6^2-(9x^2-121)
E= 2x^2-24x+6x^2-9x^2-121
E= -x^2-24x-121
2013-12-18T15:12:48+01:00
E = (2x-6) x (2x - 6) - ( 3x(+11) x (3x -11)
E = 12 - 33 x (-33)
E = 21 x (- 693)
E = -14 553