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Algebra

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Find the constant k such that the quadratic 2x^2 + 3x + 8x - x^2 + 4x + k has a double root.

Rangcr897 Sep 4, 2024

1⁺⁰ Answers

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$x^2 + 15x + k = 0$

$\Delta = \sqrt{225-4k} = 0$

$225-4k = 0$

$4k = 225$

$k = \frac{225}{4}$

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Imcool Sep 5, 2024

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