Use the Difference of Squares Pattern to Factor the Polynomial $x ^ { 2 } - 9 y ^ { 2 }$

question 17

Multiple Choice

Use the difference of squares pattern to factor the polynomial. $x ^ { 2 } - 9 y ^ { 2 }$

• A)( x - 9 y )( x + 9 y )
• B)( x + 3 y )( x + 9 y )
• C)( x - 3 y )( x + 3 y )
• D)( x - 3 y )( x - 9 y )
• E)none of these

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Definitions:

Sample

A subset of individuals or elements selected from a larger population, used to make inferences or observations about the population as a whole.

Correlational

Pertaining to a research method that examines the relationship between two or more variables to determine if they are associated.

Experimental Study Designs

Research methods that allow investigators to directly manipulate variables to investigate cause-and-effect relationships between variables.

Line of Best Fit

A straight line drawn through the center of a group of data points plotted on a scatter plot, used to analyze and predict the relationship between variables.