Question 9 • Algebra I
Rewrite the equation in standard form: x² + 4x + 4 = 0, so a = 1, b = 4, and c = 4. The discriminant is b² − 4ac = 4² − 4(1)(4) = 0. A zero discriminant means there is exactly one real solution, so the answer is 1 real solution (choice C).
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