Simplify the Expression $( 7 + \sqrt { - 15 } ) ( 3 - \sqrt { - 17 } )$

question 42

Multiple Choice

Simplify the expression. Enter the answer in a + bi form. $( 7 + \sqrt { - 15 } ) ( 3 - \sqrt { - 17 } )$

• A) \(21 - \sqrt { 255 } + ( 3 \sqrt { 15 } + 7 \sqrt { 17 } ) i\)
• B) \(21 + \sqrt { 255 } + ( 3 \sqrt { 15 } + 7 \sqrt { 17 } ) i\)
• C) \(21 + \sqrt { 255 } + ( \sqrt [ 3 ] { 15 } - 7 \sqrt { 17 } ) i\)
• D) \(21 - \sqrt { 255 } + ( \sqrt [ 3 ] { 15 } - 7 \sqrt { 17 } ) i\)

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Definitions:

Job Descriptive Index

A standardized survey instrument used primarily to measure employee job satisfaction in various domains.

Job Satisfaction

The level of contentment employees feel about their work, which can affect their performance and commitment.

Facets

Distinct aspects, phases, or dimensions of a topic, subject, or complex entity, often examined to gain a comprehensive understanding or perform a detailed analysis.

Employee Engagement

A strong sense of connection with the organization and passion for one’s job.