Factor the Expression Completely $8 r ^ { 2 } - 16 r s - 90 s ^ { 2 }$

question 58

Multiple Choice

Factor the expression completely. $8 r ^ { 2 } - 16 r s - 90 s ^ { 2 }$

• A) \(\quad ( 2 r + 9 s ) ( 4 r - 10 s )\)
• B) \(\quad ( 9 r - 2 s ) ( 4 r + 10 s )\)
• C) \(( 2 r - 9 s ) ( 4 r + 10 s )\)
• D) \(\quad ( 2 r - 9 s ) ( 10 r + 4 s )\)

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Definitions:

Public Interest

The well-being and general benefit of the community or society at large, often guiding government policy and legal decisions.

Adam Smith

An 18th-century Scottish economist and philosopher known as the father of modern economics, famous for his work "The Wealth of Nations."

Modern Economics

A branch of social science that studies how individuals, businesses, and governments make choices on allocating resources to satisfy their needs and wants.

The Wealth of Nations

A seminal book by Adam Smith, which discusses economics, the importance of free markets, division of labor, and productivity.