Find Y
- $$y = \left( x ^ { 2 } - 2 x + 2 \right) \left( 2 x ^ { 3 } - x ^ { 2 } + 4 \right)$$

question 63

Multiple Choice

Find y .
- $$y = \left( x ^ { 2 } - 2 x + 2 \right) \left( 2 x ^ { 3 } - x ^ { 2 } + 4 \right)$$

• A) \(2 x ^ { 4 } - 20 x ^ { 3 } + 18 x ^ { 2 } + 4 x - 8\)
• B) \(10 x ^ { 4 } - 20 x ^ { 3 } + 18 x ^ { 2 } + 4 x - 8\)
• C) \(10 x ^ { 4 } - 16 x ^ { 3 } + 18 x ^ { 2 } + 4 x - 8\)
• D) \(2 x ^ { 4 } - 16 x ^ { 3 } + 18 x ^ { 2 } + 4 x - 8\)

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Definitions:

Face Validity

The degree to which an assessment instrument, such as a questionnaire, on its face appears to measure what it is intended to measure. For example, a face-valid measure of sociability might ask about attendance at parties.

Exploratory Factor Analysis

A statistical technique used to identify potentially underlying variable structures within a set of observed variables without a preconceived structure in mind.

Confirmatory Factor Analysis

A statistical method used to test whether a set of observed variables represents a number of underlying factors.