Simplify
- $\left[ \left( 1.9 x ^ { 3 } + 7.4 x ^ { 2 } + 4.7 \right) + ( 6.5 x - 2.8 ) \right] - \left( 3.9 x ^ { 2 } - x - 9.6 \right)$

question 70

Multiple Choice

Simplify.
- $\left[ \left( 1.9 x ^ { 3 } + 7.4 x ^ { 2 } + 4.7 \right) + ( 6.5 x - 2.8 ) \right] - \left( 3.9 x ^ { 2 } - x - 9.6 \right)$

• A) \(1.9 x ^ { 3 } + 11.3 x ^ { 2 } + 5.5 x - 7.7\)
• B) \(1.9 x ^ { 3 } + 3.5 x ^ { 2 } + 6.5 x + 11.5\)
• C) \(1.9 x ^ { 3 } + 3.5 x ^ { 2 } + 7.5 x + 11.5\)
• D) \(12.9 x ^ { 6 } + 11.5\)

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