Perform the Indicated Operation $( \sqrt { 7 } + 5 \mathrm { i } ) ( \sqrt { 7 } - 5 \mathrm { i } )$

question 257

Multiple Choice

Perform the indicated operation. Write the result in the form a + bi.
- $( \sqrt { 7 } + 5 \mathrm { i } ) ( \sqrt { 7 } - 5 \mathrm { i } )$

• A) \(7 - 2 i \sqrt { 5 }\)
• B) \(7 - 25 \mathrm { i }\)
• C) \(- 18 + 0 \mathrm { i }\)
• D) \(32 + 0 \mathrm { i }\)

---

Definitions:

Aggregate Output

The total value of goods and services produced in an economy over a specific period, measuring the economy's overall production.

Aggregate Supply Curve

A graphical representation showing the relationship between the total supply of goods and services at various price levels in an economy.

Aggregate Demand

The total demand for all goods and services in an economy at a given overall price level and in a given period.

Macroeconomic Equilibrium

Occurs when aggregate demand equals aggregate supply in an economy, resulting in stable prices, full employment, and balanced economic growth.