Solve by the Quadratic Formula $$x ^ { 2 } + 7 x + 3 = 0$$

question 3

Multiple Choice

Solve by the quadratic formula. Simplify answers. Use i notation for nonreal complex numbers.
- $$x ^ { 2 } + 7 x + 3 = 0$$

• A) \(x = \frac { - 7 \pm \sqrt { 37 } } { 14 }\)
• B) \(x = \frac { 7 \pm \sqrt { 37 } } { 2 }\)
• C) \(x = \frac { - 7 \pm \sqrt { 37 } } { 2 }\)
• D) \(x = \frac { - 7 \pm \sqrt { 61 } } { 2 }\)

Understand the concept of Net Present Value (NPV) and its calculation.

Identify the impact of interest rates on investment decisions.

Calculate the present value of cash flows from an investment.

Use the rule of 72 to estimate the doubling time for an investment.

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