Find the 4th Term in the Binomial Expansion $( x + y ) ^ { n }$

question 182

Multiple Choice

Find the 4th term in the binomial expansion. $( x + y ) ^ { n }$

• A) \(\frac { ( n - 3 ) ! } { ( n - 3 ) ! 3 ! } x ^ { n - 3 } y ^ { 3 }\)
• B) \(\frac { n ! } { ( n - 4 ) ! 4 ! } x ^ { n - 4 } y ^ { 4 }\)
• C) \(\frac { n ! } { ( n - 3 ) ! 3 ! } x ^ { n - 3 } y ^ { 3 }\)
• D) \(\frac { n ! } { ( n - 4 ) ! } x ^ { n - 4 } y ^ { 4 }\)
• E) \(\frac { n ! } { ( n - 3 ) ! 3 ! } x ^ { n - 3 } y ^ { n }\)

---

Definitions:

Surplus

Occurs when the quantity of a good or service supplied exceeds the quantity demanded at a specific price, often leading to lower prices.

Price Ceiling

A legal maximum price that can be charged for a good or service, typically set by government to prevent prices from becoming too high.

Price Floor

A government or regulatory-imposed minimum price set above the equilibrium market price, aimed at ensuring that the market price of a good or service cannot fall below a certain level.

Shortage

A market condition where the demand for a product exceeds the supply at a given price, often leading to higher prices.