Simplify the expression 
as much as possible after substituting 
for x .
Definitions:
Personality Test
Assessments designed to measure and evaluate an individual's character traits, temperament, and patterns of thoughts and behaviors.
Intelligence Test
An assessment tool designed to measure a person's cognitive capabilities and mental capacity.
Projective Hypothesis
The theory suggesting that people project their own unconscious feelings, desires, and attitudes onto ambiguous stimuli.
Ambiguous Stimulus
A stimulus that lacks clarity or can be interpreted in multiple ways, often used in psychological experiments to explore perception, personality, or decision-making.
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