Use the Definition Of $O$ -Notation to Prove That $15 x ^ { 3 } + 8 x + 4$

question 8

Essay

Use the definition of $O$ -notation to prove that $15 x ^ { 3 } + 8 x + 4$ is $O \left( x ^ { 3 } \right)$ .(Do not use the theorem on polynomial orders.)

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Definitions:

Money Supply

Pertains to the aggregate sum of funds—including cash, coins, and bank account balances—present within an economy at a given moment.

Store Of Value

An asset that can be saved, retrieved, and exchanged at a later time, ideally retaining its value over time.

Unit Of Account

A standard numerical monetary unit of measurement of the market value of goods, services, and other transactions.

Medium Of Exchange

A middleman device or framework that assists in facilitating transactions, including the selling, buying, or swapping of items, among participants.