# HSN-CN.C.8

Extend polynomial identities to the complex numbers. For example, rewrite $x^2 + 4$ as $(x + 2i)(x - 2i)$.

## Tasks

Complex Cube and Fourth Roots of 1

Extend polynomial identities to the complex numbers. For example, rewrite $x^2 + 4$ as $(x + 2i)(x - 2i)$.

Complex Cube and Fourth Roots of 1