Respuesta :

ghaithgh

Answer:

[tex]7a(3b - 4c) + 4a(3c - 2a) \\ 21ab - 28ac + 12ac - 8 {a}^{2} \\ = 21ab - 16ac - 8 {a}^{2} [/tex]

I hope I helped you^_^

shanobaigwa

Answer:

21ab - 49ac - 8a

Step-by-step explanation:

  • 7a(3b - 4c) + 4a(3c -2a)
  • 21ab - 28ac + 12ac - 8a
  • 21ab - 49ac - 8a

Hope i helped !!!

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