Find the Sum or Difference $$\left( 2 x ^ { 7 } + 6 x ^ { 9 } - 7 - 7 x ^ { 8 } \right) - \left( 2 - 2 x ^ { 8 } + 3 x ^ { 9 } - 7 x ^ { 7 } \right)$$

question 254

Multiple Choice

Find the sum or difference.
- $$\left( 2 x ^ { 7 } + 6 x ^ { 9 } - 7 - 7 x ^ { 8 } \right) - \left( 2 - 2 x ^ { 8 } + 3 x ^ { 9 } - 7 x ^ { 7 } \right)$$

• A) \(9 x ^ { 9 } - 9 x ^ { 8 } - 5 x ^ { 7 } - 5\)
• B) \(3 x ^ { 9 } - 9 x ^ { 8 } - 5 x ^ { 7 } - 5\)
• C) \(9 x ^ { 9 } - 9 x ^ { 8 } - 5 x ^ { 7 } - 9\)
• D) \(3 x ^ { 9 } - 5 x ^ { 8 } + 9 x ^ { 7 } - 9\)

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Definitions:

Dependence

A situation in which the condition or fortunes of a person or entity are affected by another.

Centralization

The concentration of control and decision-making authority in a centralized location or group within an organization.

Authority

The capacity to direct, adjudicate, and ensure observance.

Consistency

The quality of achieving a level of performance or behavior that does not vary greatly in quality over time.