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An environmental scientist uses the quadratic function y=2x26x+5y = 2x^2 - 6x + 5 to model the concentration of a pollutant over time. To check if the concentration ever drops to zero, the scientist calculates the discriminant (b24acb^2 - 4ac). According to the standard procedure for this specific equation, the numerical value of the discriminant is ____.

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Updated 2026-04-18

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