Simplify the Expression, If Possible $$\frac { 1 - 5 a ^ { - 1 } - 24 a ^ { - 2 } } { 1 - 15 a ^ { - 1 } + 56 a ^ { - 2 } }$$

question 68

Multiple Choice

Simplify the expression, if possible.
- $$\frac { 1 - 5 a ^ { - 1 } - 24 a ^ { - 2 } } { 1 - 15 a ^ { - 1 } + 56 a ^ { - 2 } }$$

• A) \(a - 8\)
• B) \(\frac { a + 3 } { a - 7 }\)
• C) \(\frac { a - 8 } { a - 7 }\)
• D) \(\frac { ( a + 3 ) ( a - 8 ) } { ( a + 8 ) ( a - 7 ) }\)

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Definitions:

Enhance Memory

Techniques or practices aimed at improving the ability to remember information or experiences.

Declarative Memory

A memory system thought to contain knowledge, facts, information, ideas, or anything that can be recalled and described in words, pictures, or symbols.

Hybrid Car

A vehicle powered by a combination of an internal combustion engine and one or more electric motors, using less fuel and emitting less CO2 than conventional vehicles.

Spreading Activation

The excitation of one node in a semantic network by the excitation of another node to which it is connected. The excitation is said to flow across the connections.