Solve the Equation by Completing the Square $$x ^ { 2 } + 6 x - 40 = 0$$

question 60

Multiple Choice

Solve the equation by completing the square.
- $$x ^ { 2 } + 6 x - 40 = 0$$

• A) \(\{ - 4,10 \}\)
• B) \(\{ - 30 , - 10 \}\)
• C) \(\{ \pm \sqrt { - 40 } \}\)
• D) \(\{ 4 , - 10 \}\)

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Definitions:

Earnings Rate

The rate at which a company generates income relative to assets, investments, or equity.

Internal Rate of Return

A metric used in financial analysis to estimate the profitability of potential investments, calculated as the rate of return that makes the net present value of all cash flows from a particular project equal to zero.

Compound Interest

A way of calculating interest whereby the charge is based on the initial principal amount as well as on the interest that has accumulated in prior periods of a loan or deposit.

Cash Inflow

Money received by a business, typically from operational, investing, and financing activities.