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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