Decide What Values of the Variable Cannot Possibly Be Solutions $$x ^ { 4 } + 2000 = 141 x ^ { 2 }$$

question 401

Multiple Choice

Decide what values of the variable cannot possibly be solutions for the equation.
- $$x ^ { 4 } + 2000 = 141 x ^ { 2 }$$

• A) \(\{ 16,125 \}\)
• B) \(\{ 4,5 \sqrt { 5 } \}\)
• C) \(\{ - 5 \sqrt { 5 } , - 4,4,5 \sqrt { 5 } \}\)
• D) \(\{ - 125 , - 16,16,125 \}\)

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Definitions:

Placebo

A substance with no therapeutic effect, used as a control in testing new drugs or used to induce psychological benefits purely through belief.

Matched Pair

A study design element where subjects are paired based on specific characteristics, ensuring that each pair is as similar as possible except for the variable under investigation.

Statistically Significant

A measure indicating that the likelihood of an observed outcome occurring by chance is low, often used in research to validate findings.

Negative Correlation

A connection between two variables where as one variable goes up, the other goes down, and the opposite is also true.