Multiply Using the Rule for the Product of the Sum $\left( 5 a ^ { n } + 4 \right) \left( 5 a ^ { n } - 4 \right)$

question 45

Multiple Choice

Multiply using the rule for the product of the sum and difference of two terms. Assume any variable exponents represent whole numbers.
- $\left( 5 a ^ { n } + 4 \right) \left( 5 a ^ { n } - 4 \right)$

• A) \(25 a ^ { n } - 16\)
• B) \(5 a ^ { 2 n } - 16\)
• C) \(25 a ^ { 2 n } + 40 a ^ { n } - 16\)
• D) \(25 a ^ { 2 n } - 16\)

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Definitions:

Aging of Accounts

A method used to categorize accounts receivable based on the length of time an invoice has been outstanding, often to identify potential collection issues.

Gross Price Method

An accounting method where inventory purchases are recorded at their gross price, without deducting any available cash discounts.

Net Realizable Value

The estimated selling price of goods, less the costs of their sale or disposal.

Bad Debt Expense

The cost associated with accounts receivable that a company does not expect to collect because customers default on payments.