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28 February, 19:07

Write y = 2x2 + 8x + 3 in vertex form.

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Answers (2)
  1. 28 February, 21:55
    0
    y = 2 * (x + 2) ² - 5

    Step-by-step explanation:

    y = 2 * x² + 8x + 3 v (h, k)

    y = 2 (x-h) ² + k = 2x² - 4xh + 2h² + k

    8x = - 4xh h = - 2

    2h² + k = 3

    8 + k = 3 ∴ k = - 5

    Vertex form : y = 2 * (x + 2) ² - 5
  2. 28 February, 22:47
    0
    y=2 (x+2) ^2-5

    Hope this is right.-.
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