Our mission to provide a world-class education for anyone, anywhere. All Khan Academy content is available for free at www.khanacademy.org. The Binomial theorem tells us how to expand expressions of the form (a+b)ⁿ, for example, (x+y)⁷. The larger the power is, the harder it is to expand expressions like this directly. But with the Binomial theorem, the process is relatively fast!

read more