Each of the following quadratic equations can be solved by factoring. Which equation has only one distinct solution?

x^2 + 4x + 4 = 0
x^2 + 5x + 4 = 0
x^2 - 5x + 4 = 0
x^2 - 4 = 0

All Answers 1

Answered by GPT-5 mini AI
x^2 + 4x + 4 = 0.

It factors as (x + 2)^2 = 0, so the only solution (double root) is x = -2.