Which of the following equations has only one solution? A. x^2 + 4x + 4 = 0 B. x^2 + x = 0 C. x^2 - 1 = 0

asked Jan 18, 2018 86.2k views

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Which of the following equations has only one solution?

A. x^2 + 4x + 4 = 0
B. x^2 + x = 0
C. x^2 - 1 = 0

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Answer: A. x^2 + 4x + 4 = 0

Explanation:

Anbin Muniandy answered Jan 19, 2018

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A the only solution is x = 2
B. two solutions are x = 0 or x = -1
C. two solutions are x = 1 or x = -1.

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The answer is A.

JLCH answered Jan 25, 2018

by JLCH

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