Factor the expression as the sum or difference of two cubes. 
Definitions:
R
Symbol typically representing resistance in electrical circuits, quantifying how much a material opposes the flow of electric current.
Apparent Power
The total power in an AC circuit, measured in volt-amperes, combining both active (real) and reactive power components.
RC Parallel Circuit
A type of electrical circuit combining resistors and capacitors in parallel configuration, which influences the total impedance and phase angle.
R
A symbol often used to represent resistance in electrical circuits, measured in ohms.
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