6.2: Quadratic Formula - Mathematics LibreTexts
https://math.libretexts.org/Bookshelves/Algebra/Advanced_Algebra/06%3A_Solving_Equations_and_Inequalities/602%3A_Quadratic_Formula
WebOct 6, 2021 · 1 − √5 ≈ − 1.24 and 1 + √5 ≈ 3.24. In summary, if given any quadratic equation in standard form, ax2 + bx + c = 0, where a, b, and c are real numbers and a ≠ 0, then we have the following: Positive discriminant: b2 − 4ac > 0 Two real solutions. Zero discriminant: b2 − 4ac = 0 One real solution.
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