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:

Environmental Cleaning

The practice of removing contaminants from the environment, including physical, chemical, and biological pollutants, to maintain public health and ecological balance.

Interest Groups

Organizations formed to influence public policy and decision-making in favor of their members' or supporters' interests.

Technological Commodity

A product or device that is widely available and used, deriving its value from its utility and technological features.

Environmental Racism

The practice of disproportionately situating hazardous waste sites, pollution-emitting industries, or landfills near communities of color or economically disadvantaged groups.