Factor
- $x ^ { 2 } + 3 x y - 28 y ^ { 2 }$

question 35

Multiple Choice

Factor.
- $x ^ { 2 } + 3 x y - 28 y ^ { 2 }$

• A) \(( x - 7 y ) ( x + y )\)
• B) \(( x - y ) ( x + 4 y )\)
• C) \(( x + 7 y ) ( x - 4 y )\)
• D) \(( x - 7 y ) ( x + 4 y )\)

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Definitions:

Turns Ratio

The ratio of the number of turns in the primary winding to the number of turns in the secondary winding of a transformer, determining its voltage transformation characteristics.

Primary Voltage

The voltage at the input of a transformer or any primary side of an electrical system.

Primary Phase Current

The initial or main current flow in one phase of a system before splitting into secondary phases or circuits.

Resistive Load

An electrical load that consumes energy in the form of heat or light, behaving according to Ohm's law.