Combine Like Terms $$9 n - 2 n ^ { 4 } + 9 n + 9 n ^ { 4 }$$

question 46

Multiple Choice

Combine like terms.
- $$9 n - 2 n ^ { 4 } + 9 n + 9 n ^ { 4 }$$

• A) \(18 n - 2 n ^ { 4 } + 9\)
• B) \(9 n + 7 n 4 + 9\)
• C) \(9 n + 5 n ^ { 4 }\)
• D) \(18 n + 7 n ^ { 4 }\)

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Definitions:

Population Age Structure Diagrams

Illustrations that show the distribution of various age groups in a population which can reveal trends in birth rates, life expectancy, and potential growth.

World Population

Refers to the total number of humans currently living on Earth.

Adult Illiteracy

The condition of being unable to read and write in adults.

Infant Mortality

The rate at which babies under one year of age die, often used as an indicator of the overall health of a population.