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the claim
The quadratic formula for solving ax^2 + bx + c = 0 is x = (-b ± sqrt(b^2 - 4ac)) / 2a.
the verdict
SUPPORTED
the evidence backs this
Recorded sources
7 sources for · 0 against
AS REPORTEDno primary record reached; this is what the reporting says
Is it true that the quadratic formula for solving ax^2 + bx + c = 0 is x = (-b ± sqrt(b^2 - 4ac)) / 2a?
Yes. Multiple authoritative mathematics references confirm that the quadratic formula for solving ax^2 + bx + c = 0 is x = (-b ± sqrt(b^2 - 4ac)) / 2a.
Verdict: SUPPORTED · 7 sources for, 0 against · Last checked
How claims like this are judged
Judged against reference works: claims of this kind are settled by reference works, not journal abstracts.
Evidence for · 7
Reference article covering this claim directly
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Wikipedia: Quadratic formula. (n.d.). Wikipedia. https://en.wikipedia.org/wiki/Quadratic_formula
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More for · 6
The item states the quadratic formula as x = (-b ± sqrt(b^2 - 4ac)) / 2a.
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LibreTexts: LibreTexts: 10.03%3A Solve Quadratic Equations Using the Quadratic Formula. (n.d.). LibreTexts. https://math.libretexts.org/Bookshelves/Algebra/Elementary_Algebra_1e_(OpenStax)/10%3A_Quadratic_Equations/10.03%3A_Solve_Quadratic_Equations_Using_the_Quadratic_Formula
The item states the quadratic formula as x = (-b ± sqrt(b^2 - 4ac)) / 2a.
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LibreTexts: LibreTexts: 4.03%3A Solve Quadratic Equations Using the Quadratic Formula. (n.d.). LibreTexts. https://math.libretexts.org/Courses/Northeast_Wisconsin_Technical_College/College_Technical_Math_1B_(NWTC)/04%3A_Quadratic_Equations/4.03%3A_Solve_Quadratic_Equations_Using_the_Quadratic_Formula
The item gives the quadratic formula for ax^2+bx+c=0 as x = (-b ± sqrt(b^2 - 4ac)) / 2a.
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LibreTexts: LibreTexts: 6.04%3A The Quadratic Formula. (n.d.). LibreTexts. https://math.libretexts.org/Bookshelves/Linear_Algebra/A_First_Course_in_Linear_Algebra_(Kuttler)/06%3A_Complex_Numbers/6.04%3A_The_Quadratic_Formula
The item provides the quadratic formula matching the claim for solving ax^2+bx+c=0.
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LibreTexts: LibreTexts: 2.05%3A Solving Quadratics. (n.d.). LibreTexts. https://math.libretexts.org/Workbench/FHSU_College_Algebra/02%3A_Quadratic_Equations_and_Functions/2.05%3A_Solving_Quadratics
The item cites the quadratic formula as x = (-b ± sqrt(b^2 - 4ac)) / 2a.
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LibreTexts: LibreTexts: 1.06%3A Factoring Polynomials. (n.d.). LibreTexts. https://math.libretexts.org/Courses/Queens_College/Preparing_for_Calculus_Bootcamp_(Gangaram)/01%3A_Day_1/1.06%3A_Factoring_Polynomials
The item gives the quadratic formula matching the claim.
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LibreTexts: LibreTexts: 2.05%3A Quadratic Equations. (n.d.). LibreTexts. https://math.libretexts.org/Courses/Cosumnes_River_College/Math_333%3A_Introduction_to_College_Algebra/02%3A_Equations_and_Inequalities/2.05%3A_Quadratic_Equations
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