Find the Sum or Difference $$( 2 x + 9 y ) ^ { 2 }$$

question 22

Multiple Choice

Find the sum or difference.
- $$( 2 x + 9 y ) ^ { 2 }$$

• A) \(2 x ^ { 2 } + 81 y ^ { 2 }\)
• B) \(4 x ^ { 2 } + 36 x y + 81 y ^ { 2 }\)
• C) \(4 x ^ { 2 } + 81 y ^ { 2 }\)
• D) \(2 x ^ { 2 } + 36 x y + 81 y ^ { 2 }\)

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