Which of these is a quadratic equation?
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Answer: C. x² − 4x + 1 = 0
A quadratic equation has degree 2: ax² + bx + c = 0 with a ≠ 0.
Tap an answer to check.
Answer: C. x² − 4x + 1 = 0
A quadratic equation has degree 2: ax² + bx + c = 0 with a ≠ 0.