Factor Completely $$9 x ^ { 2 } - 42 x + 49 y ^ { 2 }$$

question 68

Multiple Choice

Factor completely.
- $$9 x ^ { 2 } - 42 x + 49 y ^ { 2 }$$

• A) \(( 7 x - 3 y ) ^ { 2 }\)
• B) \(( 7 x + 3 y ) ^ { 2 }\)
• C) \(( 3 x - y ) ^ { 2 }\)
• D) Prime

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