https://www.khanacademy.org/math/revision-term-1-mh-math-class-8/x0c43044bb5624863:week-2/x0c43044bb5624863:expansion-formulae/v/perfect-square-factorization-intro-indian-accent 2025-06-04T10:04:13.13703146Z Perfect square factorization intro When an expression has the general form a²+2ab+b², then we can factor it as (a+b)². For example, x²+10x+25 can be factored as (x+5)². This method is based on the pattern (a+b)²=a²+2ab+b², which can be verified by expanding the parentheses in (a+b)(a+b). Kalakrit (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Perfect square factorization intro When an expression has the general form a²+2ab+b², then we can factor it as (a+b)². For example, x²+10x+25 can be factored as (x+5)². This method is based on the pattern (a+b)²=a²+2ab+b², which can be verified by expanding the parentheses in (a+b)(a+b). https://cdn.kastatic.org/ka-youtube-converted/4gTihyG8WAw.mp4/4gTihyG8WAw.mp4 320 Expansion formulae https://www.khanacademy.org/math/class-9-tg/x06d55bfa213a79fd:polynomials-and-factorisation/x06d55bfa213a79fd:algebraic-identities/v/factoring-quadratics-as-xaxb-indian-accent 2025-06-08T17:06:50.364590398Z Factoring quadratics as (x+a)(x+b) Sal factors x²-3x-10 as (x+2)(x-5) using the sum-product form: (x+a)(x+b)=x²+(a+b)x+a*b. Kalakrit (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Factoring quadratics as (x+a)(x+b) Sal factors x²-3x-10 as (x+2)(x-5) using the sum-product form: (x+a)(x+b)=x²+(a+b)x+a*b. https://cdn.kastatic.org/ka-youtube-converted/iSieuz6L8Zk.mp4/iSieuz6L8Zk.mp4 394 Expansion formulae https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:quadratics-multiplying-factoring/x2f8bb11595b61c86:factor-quadratics-intro/v/factoring-quadratic-expressions 2021-06-30T17:32:40Z More examples of factoring quadratics as (x+a)(x+b) Can't get enough of Sal factoring simple quadratics? Here's a handful of examples just for you! Sal Khan video https://cdn.kastatic.org/googleusercontent/jes3qWMgnpoQTzMnk6gBG4LPGvEkBuNZ_51RvA8AztJSOEIHpzxj3ldk8K6VXFIwjoNETD8E7TCU_iXiI2VrdUg More examples of factoring quadratics as (x+a)(x+b) Can't get enough of Sal factoring simple quadratics? Here's a handful of examples just for you! https://cdn.kastatic.org/ka-youtube-converted/eF6zYNzlZKQ.mp4/eF6zYNzlZKQ.mp4 990 Expansion formulae https://www.khanacademy.org/math/revision-mh-math-class-8/x4e66a280e3e62582:week-1/x4e66a280e3e62582:expansion-formulae/v/application-of-a-b-c-2-and-related-identities 2025-07-22T10:08:47.702223687Z Application of (a+b+c)^2 and related identities In this video, we’ll break down the formula (a+b+c)2 and understand exactly where it comes from and why it works. Using clear visuals and simple logic, we’ll go through multiple examples to see how it’s applied. We’ll also explore interesting variations like (a+b−c)2 and more, so you get a complete grasp of these identities. Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Application of (a+b+c)^2 and related identities In this video, we’ll break down the formula (a+b+c)2 and understand exactly where it comes from and why it works. Using clear visuals and simple logic, we’ll go through multiple examples to see how it’s applied. We’ll also explore interesting variations like (a+b−c)2 and more, so you get a complete grasp of these identities. https://cdn.kastatic.org/ka-youtube-converted/am3XeaQiJzQ.mp4/am3XeaQiJzQ.mp4 430 Expansion formulae https://www.khanacademy.org/math/revision-mh-math-class-8/x4e66a280e3e62582:week-1/x4e66a280e3e62582:expansion-formulae/e/revision-expansion-formulae-mh-class-8 2026-02-03T09:09:58.884796068Z Revision expansion formulae MH class 8 . Khan Academy exercise