Solve $x ^ { 2 } - 8 x - 9 = 0$

question 49

Multiple Choice

Solve $x ^ { 2 } - 8 x - 9 = 0$ by completing the square, if possible.

• A) \(x = - 1 , x = 9\)
• B) \(x = 8 , x = - 9\)
• C) \(x = 1 , x = - 9\)
• D) \(x = - 8 , x = - 9\)
• E)no solutions

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Definitions:

Demand for Wine

The desire or need by consumers to purchase wine, which varies depending on factors like price, income levels, and personal preferences.

Reaction Function

A mathematical representation in economics that indicates how one player's action responds to the actions of another in a strategic setting.

Marginal Cost

The amount spent on the production of one more unit of a product or service.

Demand Function

A mathematical function showing the relationship between the quantity demanded of a good and its price, holding other factors constant.