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19 December, 08:37

Simplify the following polynomial expression.

3x (-2x + 7) - 5 (x - 1) (4x - 3)

+2
Answers (2)
  1. 19 December, 08:59
    0
    Answer: - 26x^2 + 56x - 15

    Step-by-step explanation:

    3x (-2x + 7) - 5 (x - 1) (4x - 3)

    -6x^2 + 21x - (5x + 5) (4x-3)

    -6x^2 + 21x - 20x^2 + 15x + 20x - 15

    = - 26x^2 + 56x - 15
  2. 19 December, 10:42
    0
    The simplest polynomial expression is

    -26x^2+56x-15
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