Solve the Equation by Completing the Square $$x ^ { 2 } + 6 x = 31$$

question 39

Multiple Choice

Solve the equation by completing the square. Express any complex numbers using i notation.
- $$x ^ { 2 } + 6 x = 31$$

• A) \(x = - 3 \pm 2 \sqrt { 10 }\)
• B) \(x = - 3 \pm 2 \sqrt { 20 }\)
• C) \(x = 2 \sqrt { 10 } \pm 3\)
• D) \(x = \pm 2 \sqrt { 10 }\)

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Definitions:

Acquisition Cost

The total cost incurred to acquire an asset, including the purchase price and all related expenses.

Equity Method

An accounting technique used to record investments in other companies, where the investment is reflected as an asset and changes in the value of the investment adjust the investor's income.

Realized Gains

Profits that are recognized when assets are sold for a price higher than their book value.

Equity Method

is an accounting technique used to record investments in associated companies where the investor has significant influence but not full control.