Exercises: Extend Polynomial Identities to Complex Numbers

Factor completely over the complex numbers. Verify by expanding when asked.

Grade 9·20 problems·~40 min·Common Core Math - HS Number and Quantity·standard·hsn-cn-c-8

Work through problems with immediate feedback

Warm-Up: Review What You Know

Factor $x^2 - 9$ over the real numbers.

$(x + 3i)(x - 3i)$

$(x + 3)(x - 3)$

$(x - 3)^2$

Prime (does not factor)