Which of the Following Equations Is a Cubic Equation?
A) $2 x ^ { 3 } - 2 x ^ { 2 } - 5 = 0$

question 25

Multiple Choice

Which of the following equations is a cubic equation?

• A) \(2 x ^ { 3 } - 2 x ^ { 2 } - 5 = 0\)
• B) \(40 x ^ { 2 } - 5 x ^ { 4 } + 2 x ^ { 3 } = 0\)
• C) \(5 - x = 0\)
• D) \(40 x ^ { 2 } - 5 x = 2\)

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Definitions:

Narcolepsy

A sleep disorder characterized by excessive daytime sleepiness and sudden attacks of sleep.

Night Terrors

Intense episodes of panic and fear that occur during sleep, often involving screaming, thrashing, and a feeling of extreme terror.

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A sleep disorder characterized by difficulty falling asleep, staying asleep, or experiencing restorative sleep.

Activation-Synthesis Theory

A theory in neuroscience that proposes dreams are created by the brain’s attempt to make sense of neural activity during sleep.