Final answer:
The electrical potential at the point (2, -3, 4) for the given potential function v(x, y, z) = 5x² - 4xy - xyz is 68 volts.
Step-by-step explanation:
To determine the electrical potential at a point (2, -3, 4) given the potential function v(x, y, z) = 5x² - 4xy - xyz, we simply substitute the coordinates of the point into the function:
v(2, -3, 4) = 5(2)² - 4(2)(-3) - (2)(-3)(4)
= 5(4) + 24 + 24
= 20 + 48
= 68 V
Therefore, the electrical potential at the point (2, -3, 4) is 68 volts.