Multiply, and Then Simplify If Possible $$( 7 + \sqrt [ 3 ] { 2 } ) ( 7 - \sqrt [ 3 ] { 2 } )$$

question 118

Multiple Choice

Multiply, and then simplify if possible. Assume all variables represent positive real numbers.
- $$( 7 + \sqrt [ 3 ] { 2 } ) ( 7 - \sqrt [ 3 ] { 2 } )$$

• A) \(49 - \sqrt [ 3 ] { 4 }\)
• B) 47
• C) 45
• D) \(49 - \sqrt [ 3 ] { 2 }\)

---

Definitions:

Construct Validity

The extent to which a test or measurement tool accurately measures the theoretical construct it is intended to measure.

Content Validity

The extent to which a test measures all aspects of the concept it intends to measure.

Predictive Validity

The extent to which a test or measure accurately predicts future performance or outcomes.

Test-retest Reliability

A measure of the consistency of a psychological test or assessment when administered at two different times.