Solve
- $x = \sqrt { 4 x + 21 }$

question 49

Multiple Choice

Solve.
- $x = \sqrt { 4 x + 21 }$

• A) \(- 3,7\)
• B) 3,7
• C) \(- 7\)
• D) 7

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Definitions:

Subpopulation

A distinct group within a larger population, often defined by specific characteristics or interests.

Critical Mass

A sufficient amount of something needed to maintain or start a process, especially in the context of nuclear reactions or creating social change.

Sample

A part of a population that is studied to reach conclusions about the entire population.

Case Study

A descriptive research method in which a single individual or a small number of persons are studied in great depth.