Write a quadratic equation with a double root of -5

Question

asked Feb 11, 2022 20.3k views

2 Answers

Dsrdakota · Answer 1 · 2022-02-14T00:19:56+0000

Answer:

x² + 10x + 25 = 0

Explanation:

Given that x = - 5 is a root then (x + 5) is a factor

Since it is a double root then (x + 5)² so equation is

(x + 5)² = 0 ← expand factor using FOIL

x² + 10x + 25 = 0