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Mathematics

1 answer:

aleksley [76]3 years ago

4 0

<u>Answer:</u>

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

<u>Step-by-step explanation:</u>

[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, <u>Option A (-26x² + 56x - 15) is correct.</u>

Hoped this helped.

$BrainiacUser1357$

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