Respuesta :

Answer:

  • Option A (-26x² + 56x - 15) is correct.

Step-by-step explanation:

  • [3x(-2x + 7)] - [5(x - 1)(4x - 3)]
  • => [-6x² + 21x] - [(5)(x - 1)(4x - 3)]
  • => [-6x² + 21x] - [(5x - 5)(4x - 3)]
  • => [-6x² + 21x] - [20x² - 15x - 20x + 15]
  • => -6x² + 21x - 20x² + 15x + 20x - 15
  • => -26x² + 56x - 15

Hence, Option A (-26x² + 56x - 15) is correct.

Hoped this helped.

[tex]BrainiacUser1357[/tex]

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