https://www.khanacademy.org/math/ncert-math-class-8-winter-bridge/x07a8c25cbfcc9660:week-2/x07a8c25cbfcc9660:untitled-214/v/variables-expressions-equations-indian-accent 2025-06-05T09:01:06.799874579Z Variables, expressions, & equations In algebra, we use variables like x, y, and z to represent unknown values. Expressions are combinations of variables and numbers, while equations equate two expressions. Variables can take on different values depending on the context, and we can evaluate expressions by substituting values for the variables. Kalakrit (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Variables, expressions, & equations In algebra, we use variables like x, y, and z to represent unknown values. Expressions are combinations of variables and numbers, while equations equate two expressions. Variables can take on different values depending on the context, and we can evaluate expressions by substituting values for the variables. https://cdn.kastatic.org/ka-youtube-converted/x_MqISpp2uQ.mp4/x_MqISpp2uQ.mp4 415 Linear Polynomials https://www.khanacademy.org/math/class-9-tg/x06d55bfa213a79fd:polynomials-and-factorisation/x06d55bfa213a79fd:zeros-of-a-polynomial/v/evaluating-polynomials-indian-accent 2025-06-04T10:04:13.13703146Z Evaluating polynomials Evaluating 3x²-8x+7 when x=-2. Skyloom (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Evaluating polynomials Evaluating 3x²-8x+7 when x=-2. https://cdn.kastatic.org/ka-youtube-converted/0JM5iHoPBxk.mp4/0JM5iHoPBxk.mp4 66 Linear Polynomials https://www.khanacademy.org/math/class-9-tg/x06d55bfa213a79fd:polynomials-and-factorisation/x06d55bfa213a79fd:zeros-of-a-polynomial/e/value-of-a-polynomial 2025-12-30T07:05:15.972746521Z Finding value of a polynomial Finding value of a polynomial ashish exercise