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3 January, 01:22

Find the discriminant of the polynomial below. 4x2 - 20x + 25?

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  1. 3 January, 04:28
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    b² - 4ac = 0

    Step-by-step explanation:

    given a quadratic in standard form : ax² + bx + c : a≠ 0

    the discriminant Δ = b² - 4ac

    4x² - 20x + 25 is in standard form

    with a = 4, b = - 20 and c = 25

    b² - 4ac = ( - 20) ² - (4 * 4 * 25) = 400 - 400 = 0
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