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28 March, 01:11

What are the solutions of 2x2 + 16x + 34 = 0?

-8 ± 2i

-8 ± i

-4 ± 2i

-4 ± i

+3
Answers (1)
  1. 28 March, 01:36
    0
    2x^2 + 16x + 34 = 0

    x^2 + 8x + 17 = 0

    x^2 + 8x + 16 = - 17 + 16 = - 1

    (x + 4) ^2 = - 1

    x + 4 = sqrt (-1) = ±i

    x = - 4 ± i
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