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]
