Simplify the Expression $$- \sqrt { 54 }$$ A) 7
B) $- 3 \sqrt { 6 }$

question 423

Multiple Choice

Simplify the expression. Assume all variables represent positive real numbers.
- $$- \sqrt { 54 }$$

• A) 7
• B) \(- 3 \sqrt { 6 }\)
• C) not a real number
• D) \(- 9 \sqrt { 6 }\)

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Reflexes

Involuntary, automatic responses of the body to a stimulus, which function as basic building blocks of the nervous system, ensuring survival through quick reactions to the environment.

Existing Scheme

Cognitive structures or patterns of thought and understanding that individuals use to organize and interpret experience.

Accommodation

In psychology, a process of cognitive development where existing mental schemas are modified to incorporate new experiences.

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Divisions or phases that are part of a broader developmental stage, marking specific milestones or characteristics.