Factor Completely Using the Grouping Method to Factor Trinomials $$36 x ^ { 2 } + 21 x y + 3 y ^ { 2 }$$

question 24

Multiple Choice

Factor completely using the grouping method to factor trinomials. If unfactorable, indicate that the polynomial is prime.
- $$36 x ^ { 2 } + 21 x y + 3 y ^ { 2 }$$

• A) \(3 ( 3 x + y ) ( 4 x + y )\)
• B) prime
• C) \(3 ( 3 x - y ) ( 4 x - y )\)
• D) \(( 9 x + 3 y ) ( 4 x + y )\)

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