Divide and Simplify $$\frac { x ^ { 2 } - 9 } { x } \div \frac { 7 x + 21 } { x - 3 }$$

question 133

Multiple Choice

Divide and simplify.
- $$\frac { x ^ { 2 } - 9 } { x } \div \frac { 7 x + 21 } { x - 3 }$$

• A) \(\frac { ( x - 3 ) ^ { 2 } } { 7 x }\)
• B) \(\frac { 7 x } { ( x - 3 ) ^ { 2 } }\)
• C) \(\frac { ( x - 3 ) ^ { 2 } } { x }\)
• D) \(\frac { 7 ( x + 3 ) ^ { 2 } } { x }\)

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Definitions:

Mixers

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Constant Returns

An economic principle where increasing inputs in production results in a proportional increase in outputs.

Scale

A concept in economics that refers to the level at which a company or economy operates, particularly in terms of production and cost efficiency.