https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:quadratic-functions-equations/x2f8bb11595b61c86:quadratic-formula-a1/v/quadratic-formula-3 2021-06-30T17:32:40Z Using the quadratic formula: number of solutions Sal determines how many solutions the equation x²+14x+49=0 has by considering its quadratic formula, and more specifically, its discriminant. Sal Khan video https://cdn.kastatic.org/googleusercontent/tME4PRNM9reIhRtam5gf08p-f3rTVvAUySKkYVhiXETYW2OVGb067h40e5z7ZvPDtCie_-_v3GpBKKAH1CckUb-I Using the quadratic formula: number of solutions Sal determines how many solutions the equation x²+14x+49=0 has by considering its quadratic formula, and more specifically, its discriminant. https://cdn.kastatic.org/ka-youtube-converted/XUvKjC21fYU.mp4/XUvKjC21fYU.mp4 299 Nature of roots of a quadratic equation https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:quadratic-functions-equations/x2f8bb11595b61c86:quadratic-formula-a1/e/determine-the-number-of-solutions-of-a-quadratic-equation 2025-12-28T12:18:45.238308434Z Number of solutions of quadratic equations Analyze quadratic equations in order to determine how many different real number solutions they have. Tomer Gal exercise https://www.khanacademy.org/math/revision-term-1-od-math-class-10/x03e14a980a7a91ad:week-1/x03e14a980a7a91ad:quadratic-equations/v/discriminant-for-types-of-solutions-for-a-quadratic 2020-08-25T18:06:02Z Discriminant for types of solutions for a quadratic Discriminant for Types of Solutions for a Quadratic Sal Khan video https://cdn.kastatic.org/googleusercontent/Cf-vnnGPYQG-hn107ktwx7e-qYpZh8dspQCbpDq0KiWNv7onbglxIB-Btt467AiLrcwsoQPkBfJYPy1aMJ5J4gyw Discriminant for types of solutions for a quadratic Discriminant for Types of Solutions for a Quadratic https://cdn.kastatic.org/ka-youtube-converted/1213qW5k55I.mp4/1213qW5k55I.mp4 277 Nature of roots of a quadratic equation https://www.khanacademy.org/math/revision-term-1-mh-math-class-10/x041ca11815640a3a:week-2/x041ca11815640a3a:quadratic-equations/e/finding-roots-and-discriminant 2026-02-25T07:10:43.942529673Z Finding roots and discriminant This exercise is do-4 and is a replica of Quadratic equations 4.3, and this exercise is curated for new ncert Devashish Phadnis exercise https://www.khanacademy.org/math/revision-term-1-od-math-class-10/x03e14a980a7a91ad:week-1/x03e14a980a7a91ad:quadratic-equations/e/finding-nature-of-roots 2025-02-27T12:31:05.94748833Z Finding nature of roots Let's solve some challenge problems involving nature of roots. anmol exercise