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Double root

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. Find the constant k such that the quadratic 2x^2 + 13x - 8x + 2x^2 + k has a double root.

tomtom Feb 17, 2024

1⁺⁰ Answers

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$4{x}^{2}+5x+k=0$ .

Use discriminant so that $\Delta = 0$ .

$25-4(k)(4)=0$

$16k=25$

$k=\frac{25}{16}$ .

hairyberry Feb 17, 2024

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