Solve by Completing the Square $$x ^ { 2 } + 8 x = 7$$

question 334

Multiple Choice

Solve by completing the square.
- $$x ^ { 2 } + 8 x = 7$$

• A) \(4 + \sqrt { 23 }\)
• B) \(- 1 \pm \sqrt { 23 }\)
• C) \(- 4 \pm \sqrt { 23 }\)
• D) \(- 4 \pm 2 \sqrt { 23 }\)

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Definitions:

Profit

The financial gain achieved when the revenue from a business activity exceeds the expenses, costs, and taxes involved in sustaining the activity.

Marginal Cost

The additional cost incurred by producing one more unit of a product or service, important for decision-making in pricing and production levels.

Average Total Cost

The total cost of production divided by the quantity of output produced, representing the per-unit cost of production.

Maximizing Profit

The process by which a company determines the price and output level that generates the maximum amount of profit.