Loading [MathJax]/jax/output/SVG/jax.js

Algebra

0

15

1

+972

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

+307

0

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

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

$225-4k = 0$

$4k = 225$

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

.

Imcool Sep 5, 2024

0 Online Users