Factor the Expression $x ( n - y ) + ( x - 1 ) ( y - n )$

question 153

Multiple Choice

Factor the expression. $x ( n - y ) + ( x - 1 ) ( y - n )$

• A) \(xn - y\)
• B) \(x + ( x - 1 ) ( y - n )\)
• C) \(n - y\)
• D) \(x + y\)
• E) \(x y\)

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Definitions:

Observational Method

A technique in research where behavior is observed and recorded in a natural setting without intervention.

Systematic Observation

Observations of one or more specific variables, usually made in a precisely defined setting.

Behavioral Codes

Behavioral codes are predefined criteria used to systematically categorize and record behaviors in observational research.

Systematic Observation

A structured method of data collection where researchers consistently observe and record behavior according to a set of predefined criteria.