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Curated by: Khan Academy India - English (9 videos)
Master cubic and trinomial identities with this practice-focused video! Learn how to identify which identity to use based on the problem, understand the logic behind choosing the right approach, and follow a clear step-by-step process to solve efficiently. Packed with practical examples, this video ensures you confidently tackle any problem involving these essential algebraic identities! Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/math/ncert-class-9/x2757d6348a04b24e:polynomials-ncert-new Timestamps: 00:00 Practice problem on writing the cube in expanded form 02:32 Practice problem on factorizing trinomial identity 05:42 Evaluate using suitable identity 06:58 Factorizing cubic identity 08:21 Practice problem on identity a^3 + b^3 + c^3 - 3abc 10:29 Another problem on factorizing cubic identity 13:04 Application of identity a^3 + b^3 + c^3 - 3abc 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 Created by MAHAK WASAN