Solve
- $x ^ { 4 } - 4 x ^ { 2 } - 45 = 0$

question 48

Multiple Choice

Solve.
- $x ^ { 4 } - 4 x ^ { 2 } - 45 = 0$

• A) \(\{ 3 , i \sqrt { 5 } \}\)
• B) \(\{ - \sqrt { 5 } , \sqrt { 5 } , - 3 i , 3 i \}\)
• C) \(\{ - 9,5 \}\)
• D) \(\{ - 3,3 , - \mathrm { i } \sqrt { 5 } , \mathrm { i } \sqrt { 5 } \}\)

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Definitions:

Systematic Observations

Carefully planned and structured methods of collecting data by watching subjects in a specific setting.

Phenomenon Understanding

The comprehension or insight into events or occurrences that are observable, often leading to new knowledge or scientific discoveries.

Negative Correlation

A relationship between two variables in which one variable increases as the other decreases.

Bully

An individual who uses strength or power to harm or intimidate those who are weaker.