Factor Completely $$( x + y ) ^ { 3 } + 343$$

question 139

Multiple Choice

Factor completely.
- $$( x + y ) ^ { 3 } + 343$$

• A) \(( x + y + 7 ) \left( x ^ { 2 } + 2 x y + y ^ { 2 } + 7 x + 7 y + 49 \right)\)
• B) \(( x + y - 7 ) \left( x ^ { 2 } + 2 x y + y ^ { 2 } + 7 x + 7 y + 49 \right)\)
• C) \(( x + y + 7 ) \left( x ^ { 2 } - 2 x y + y ^ { 2 } - 7 x - 7 y + 49 \right)\)
• D) \(( x + y + 7 ) \left( x ^ { 2 } + 2 x y + y ^ { 2 } - 7 x - 7 y + 49 \right)\)

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