Perform the Indicated Operation $$\frac { 2 } { x ^ { 2 } - 4 } - \frac { x } { x ^ { 2 } - 4 x + 4 } + \frac { 1 } { x + 2 }$$

question 95

Multiple Choice

Perform the indicated operation. Simplify if possible.
- $$\frac { 2 } { x ^ { 2 } - 4 } - \frac { x } { x ^ { 2 } - 4 x + 4 } + \frac { 1 } { x + 2 }$$

• A) \(\frac { - 4 x } { ( x + 2 ) ( x - 2 ) }\)
• B) \(\frac { 4 x } { ( x + 2 ) ( x - 2 ) ^ { 2 } }\)
• C) \(\frac { - 4 x } { ( x + 2 ) ( x - 2 ) ^ { 2 } }\)
• D) \(\frac { 3 - x } { ( x + 2 ) ( x - 2 ) ^ { 2 } }\)

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Definitions:

Iconic Memory

The visual memory of an event stored in the sensory register.

Echoic Memory

The auditory memory of an event stored in the sensory register.

Serial Position Effect

The faster learning and greater recall of items at the beginning and end of a list rather than at the middle of the list.

Recall

The act of retrieving information or memories from one's past without the aid of specific cues for retrieval.