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Write a quadratic equation with a double root of -5
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5 votes
Write a quadratic equation with a double root of -5

User RomkaLTU
by
4.2k points

2 Answers

3 votes

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

User Dsrdakota
by
4.2k points
2 votes

Answer:

x^2 =5

Explanation:

User JamesStuddart
by
4.1k points
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