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25 July, 10:17

Which statement about the following equation is true? 3x^2 - 8x + 5 = 5x^2

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  1. 25 July, 11:16
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    The discriminant (d) of the equation expressed as ax² + bx + c = 0 may be calculated by,

    d = b² - 4ac

    Simplifying the equation, - 2x² - 8x + 5 = 0. Substituting the known values,

    d = (-8) ² - 4 (-2) (5) = 104

    The answer is letter B. The discriminant is greater than 0, so there are two real roots.
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