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26 December, 16:12

What are the zeros of the quadratic function f (w) = 2w^2+7w-4

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Answers (2)
  1. 26 December, 17:10
    0
    Answer: w = 1/2 and w = - 4

    Step-by-step explanation:

    2w^2+7w-4=0

    The quadratic formula is (-b + - √b^2-4ac) / 2a

    In this case a=2, b=7, c = - 4

    (-7 + - √7^2 - 4 (2) (-4)) / 2 (2)

    (-7 + - √49+32) / 4

    (-7 + - √81) / 4

    (-7+9) / 4 and (-7-9) / 4

    2/4 and - 16/4

    1/2 and - 4
  2. 26 December, 20:07
    0
    Answer:f (w) = w^3 + 7/2w^2-4w+c
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