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11 September, 00:58

Mark is solving the equation 4x2 + 2x = - 9 using the quadratic formula.

Which values could he use for a, b and c?

Question 6 options:

a = 4, b = 2, c = - 9

a = 4, b = - 9, c = 2

a = 4, b = 2, c = 9

a = 4, b = 9, c = - 2

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Answers (1)
  1. 11 September, 04:35
    0
    4x^2 + 2x = - 9

    4x^2 + 2x + 9 = 0

    remember that the form of quadratic is ax^2 + bx + c = 0

    so

    a = 4

    b = 2

    c = 9
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