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Curated by: Khan Academy India - English (5 videos)
https://www.khanacademy.org/math/ncert-class-10 We determine how many solutions the equation x²+14x+49=0 has by considering its quadratic formula, and more specifically, its discriminant. Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! 2:02 What happens when you get a negative square root in the quadratic formula? 2:36 What does discriminant mean in Algebra 2? 4:17 What happens when the discriminant is zero in the quadratic formula? Khan Academy India is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We have videos and exercises that have been translated into multiple Indian languages, and 15 million people around the globe learn on Khan Academy every month. Support Us: https://india.khanacademy.org/donate