Simplify $\frac { a ^ { 2 } - 9 } { a ^ { 2 } + 9 }$

question 3

Short Answer

Simplify:
$\frac { a ^ { 2 } - 9 } { a ^ { 2 } + 9 }$

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Definitions:

Classical Conditioning

A conditioning method in which repeated pairings of two stimuli lead to a response that, though originally elicited by the second stimulus, is eventually elicited by the first stimulus alone.

Little Albert

An early experiment in psychology by John B. Watson and Rosalie Rayner that demonstrated how emotional responses, such as fear, could be conditioned in humans.

John Watson

An American psychologist who established the school of behaviorism and conducted research on animal behavior and child development.

Immunosuppression

The reduction of the efficacy of the immune system's ability to fight infections or diseases.