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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The legal money circulated within the United States, consisting primarily of dollars and cents.

Danish Krone

The official currency of Denmark, also used in Greenland and the Faroe Islands.

U.S. Dollar

The official currency of the United States, commonly used worldwide as a benchmark currency.

Danish Krone

The official currency of Denmark, abbreviated as DKK, used in both Denmark, Greenland, and the Faroe Islands.