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12 December, 04:45

Simplify:

6x (x-3) + x (2-5 x) + 3 x²

+2
Answers (2)
  1. 12 December, 04:54
    0
    4x² - 16x

    Step-by-step explanation:

    6x (x - 3) + x (2 - 5x) + 3x²

    6x² - 18x + 2x - 5x² + 3x²

    6x² - 5x² + 3x² - 18x + 2x

    x² + 3x² - 16x

    4x² - 16x
  2. 12 December, 08:10
    0
    2 (2x² - 9)

    Step-by-step explanation:

    6x (x-3) + x (2-5 x) + 3 x² = 6x² - 18 + 2x-5x² + 3 x²

    = 6x²-5x² + 3 x² + 2x - 18

    =4x² - 18

    =2 (2x² - 9)
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