Respuesta :

Answer:

  1. 9(-4)= -36
  2. -9+(-4)= -13
  3. -4-4= -8
  4. 4+(-4)= -5
  5. -9-(-9)= 0
  6. 9-(-4)= 13
  7. (-4)squared= -16
  8. -9squared= -81
  9. -4(-9)= 36
  10. (-4)cubed=-64
  11. 4/-4= -1
  12. -9(4)= -36