Simplify the Expression $- 8 \sqrt { 5 } + 6 \sqrt { 45 }$

question 13

Multiple Choice

Simplify the expression. Assume all variables represent positive real numbers.
- $- 8 \sqrt { 5 } + 6 \sqrt { 45 }$

• A) \(10 \sqrt { 5 }\)
• B) \(26 \sqrt { 5 }\)
• C) \(- 10 \sqrt { 5 }\)
• D) \(- 2 \sqrt { 5 }\)

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Definitions:

R-sleep

R-sleep, also known as REM (Rapid Eye Movement) sleep, is a sleep phase characterized by rapid movement of the eyes, increased brain activity, vivid dreams, and temporary muscle paralysis.

Infant

An infant refers to a young child in the earliest period of life, particularly from birth to one year of age, characterized by rapid physical growth and cognitive development.

Middle-aged

A period in adult life roughly between the ages of 40 and 65, often considered a time of stability, but sometimes associated with a midlife crisis.

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Pertaining to individuals in the later stages of life, often defined as ages 65 and older, characterized by increased vulnerability to health problems.