If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains ***.kastatic.org** and ***.kasandbox.org** are unblocked.

Main content

CCSS Math: HSN.CN.A.2, HSN.CN.A

Learn how to multiply two complex numbers. For example, multiply (1+2i)⋅(3+i).

Sort by: