Find All Real Zeros of the Polynomial $p ( x ) = x ^ { 4 } - 9 x ^ { 2 } + 20$

question 36

Essay

Find all real zeros of the polynomial $p ( x ) = x ^ { 4 } - 9 x ^ { 2 } + 20$ . Use the quadratic formula if necessary.

---

Definitions:

Void Title

Not true title; for example, the title held by someone who knowingly or unknowingly purchased stolen goods.

French-Based Code Law

A legal system based on comprehensive written statutes and codes as a primary source of law, in contrast to common law systems; it is derived from the Napoleonic Code.

Merchant

An individual or company engaged in the buying and selling of goods for profit.

Buyer

An individual or entity that purchases goods or services from another party.