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:

Muscle Contraction Headache

A headache caused by the narrowing of muscles surrounding the skull. Also known as tension headache.

Migraine Headache

A very severe headache that occurs on one side of the head, often preceded by a warning sensation and sometimes accompanied by dizziness, nausea, or vomiting.

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A distressing sensation and emotional reaction linked to real or possible harm to the body's tissues.

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A mental condition where a person has neurological symptoms that cannot be explained by medical evaluation, often related to psychological conflict.