Simplify
- $\left( 5 m ^ { 2 } + 9 m n - 6 n ^ { 2 } \right) - \left( 9 m ^ { 2 } + 4 m n - 9 n ^ { 2 } \right)$

question 95

Multiple Choice

Simplify.
- $\left( 5 m ^ { 2 } + 9 m n - 6 n ^ { 2 } \right) - \left( 9 m ^ { 2 } + 4 m n - 9 n ^ { 2 } \right)$

• A) \(- 4 m ^ { 2 } + 5 m n - 15 n ^ { 2 }\)
• B) \(- 4 m ^ { 2 } + 13 m n + 3 n ^ { 2 }\)
• C) \(- 4 m ^ { 2 } + 5 m n + 3 n ^ { 2 }\)
• D) \(14 m ^ { 2 } + 13 m n - 15 n ^ { 2 }\)

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