Simplify
- $\frac { \frac { 10 } { a } + 10 } { \frac { 10 } { a } - 10 }$

question 7

Multiple Choice

Simplify.
- $\frac { \frac { 10 } { a } + 10 } { \frac { 10 } { a } - 10 }$

• A) \(10 - a ^ { 2 }\)
• B) \(\frac { 1 + a } { 1 - a }\)
• C) \(\frac { 10 ( 1 + a ) } { 1 - a }\)
• D) \(\frac { a ^ { 2 } } { 10 - a ^ { 2 } }\)

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