Réponses

2013-10-30T21:24:22+01:00
J = 9-5x(-2+3-8)+4
  =9-5x(-7)+4
  =9-(-35)+4
  =9+35+4=48
K = (-10)x[5-(-7)]x(-3+7)
   =(-10)x[(5+7)x(3+7)]
   =-10x(12)x(10)
   =-10x120=-1200
L = 15-[(-18+3)x(-6)]
   = 15-[(-15)x(-6)]
   =15-(90)=-75