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25 June, 22:36

Give the values of a, b, and c from the standard form of the equation (2x + 1) (x - 2) = 0.

A. a = 2, b = - 3, c = - 2

B. a = 2, b = 5, c = - 2

C. a = 3, b = 1, c = - 1

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Answers (1)
  1. 26 June, 01:35
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    Standard form is ax^2 + bx + c = 0

    (2x + 1) (x - 2) = 0

    Distribute to get into standard form

    2x^2 - 4x + x - 2 = 0

    2x^2 - 3x - 2 = 0

    a = 2, b = - 3, c = - 2

    A is your answer
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