Solve
- $\sqrt { x ^ { 2 } - 19 } + 9 = 0$

question 125

Multiple Choice

Solve.
- $\sqrt { x ^ { 2 } - 19 } + 9 = 0$

• A) \(\varnothing\)
• B) 10
• C) \(10 , - 10\)
• D) \(11 , - 11\)

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Phenomenon refers to an observable event, fact, or circumstance that can be scientifically investigated to gain understanding or evidence about it, often used to describe unusual or remarkable occurrences.

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A theory that suggests support from social networks has positive effects on an individual's health and well-being.

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The introduction of new ideas, devices, or methods, often leading to improvements in processes, products, or technology.