Simplify
- $$\frac { 1 - 9 x ^ { 2 } } { 9 x ^ { 2 } + 6 x + 1 }$$

question 51

Multiple Choice

Simplify.
- $$\frac { 1 - 9 x ^ { 2 } } { 9 x ^ { 2 } + 6 x + 1 }$$

• A) \(1 - 3 x\)
• B) \(\frac { 3 x + 1 } { 1 - 3 x }\)
• C) \(- 1\)
• D) \(\frac { 1 - 3 x } { 3 x + 1 }\)

---

Definitions:

Wernicke's Area

A region of the brain that is important for language comprehension, located in the posterior section of the superior temporal gyrus in the dominant cerebral hemisphere.

Sodium-Potassium Pump

A cell membrane protein that uses ATP to transport sodium ions out of and potassium ions into a cell, maintaining the cell's electrochemical gradient.

Resting Potential

Membrane potential of an inactive neuron.

Action Potential

A rapid rise and subsequent fall in voltage or electric potential across a cellular membrane, primarily found in neurons, that allows for the conduction of neural impulses.