bonjour un autre exos aider moi svp

C= -4(7-5X)
  =-4x7+ -4X (-5X)
  =- 32+ 20

D= (-5X +4) x2
  =2x(-5X) + 2x4
  -10X +8

G= -4X (-3X +6)
  = -4X x(-3X)+(4X) x6
  =12X + 24X
  = 36X

H= 5X (-4+2X)
  = 5X x(-4) + 5X x 6
  = -20X + 10X
  = 10X

J= 3(X-5) - 4(5+X)
  = 3 x X+ 3 x 5 - 4 x 5 + 4 x X
  = 3X + (-15) - 20 + 4X
  = 8X - 35

L= 2(5+X) + 0(x+3)
  = 2x5+ 2xX