Respuestas

  • Usuario de Brainly
2013-12-24T14:39:57+01:00
15x2 + 15x4 = 15x(2 + 4) = 15x6 = 90

7x8 + 9x8 = 8x(7 + 9) = 8x16 = 128
2013-12-24T17:16:54+01:00
15(2 + 4) = 15(6) = 90
8(7 + 9) = 8(16) = 128