Solve the Equation After Making an Appropriate Substitution $$x + \sqrt { x } = 72$$

question 139

Multiple Choice

Solve the equation after making an appropriate substitution.
- $$x + \sqrt { x } = 72$$

• A) \(\{ 8 \}\)
• B) \(\{ 9 \}\)
• C) \(\{ 81 \}\)
• D) \(\{ 64 \}\)

---

Definitions:

Future Date

A specified day in the future on which an event is planned or expected to occur.

Negotiable Instrument

A document that promises to pay a certain sum of money, which can be demanded at any time or on a fixed date, and allows the beneficiary to transfer this right to someone else.

Commercial Paper

An unsecured, short-term debt instrument issued by corporations, typically used for financing immediate needs.

Payment

The transfer of money, goods, or services as compensation or fulfillment of an obligation.