Perform the Indicated Operation and Express Your Answer in Simplest $$\frac { 17 n ^ { 2 } } { n ^ { 4 } - 81 } - \frac { n } { n ^ { 2 } - 9 } + \frac { 1 } { n + 3 }$$

question 276

Short Answer

Perform the indicated operation and express your answer in simplest form. $$\frac { 17 n ^ { 2 } } { n ^ { 4 } - 81 } - \frac { n } { n ^ { 2 } - 9 } + \frac { 1 } { n + 3 }$$ Please enter your answer as one fraction with the denominator factored completely.

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Definitions:

Average Cost

The total cost of production divided by the number of goods produced, synonymous with average total cost, indicating the cost on a per unit basis.

Long-run Equilibrium

A state in which all factors of production are fully adjustable, allowing firms to enter or exit the industry, resulting in no economic profit for firms in perfectly competitive markets.

Marginal Cost

The cost addition of manufacturing an extra item of a particular product, emphasizing its role in decision-making for production levels.

Purely Competitive

A market structure characterized by many buyers and sellers, where each seller has little to no influence on the market price.