Use the Method of Completing the Square to Solve the Quadratic

question 86

Multiple Choice

Use the method of completing the square to solve the quadratic equation. 2 x 2 + 6 x $-$ 5 = 0

• A) \(x = \frac { - 6 + \sqrt { 19 } } { 2 } , x = \frac { 6 + \sqrt { 19 } } { 2 }\)
• B) \(x = \frac { - 3 + \sqrt { 19 } } { 2 } , x = \frac { - 3 - \sqrt { 19 } } { 2 }\)
• C) \(x = \frac { 6 + \sqrt { 19 } } { 2 } , x = \frac { - 6 - \sqrt { 19 } } { 2 }\)

---

Definitions:

Compound Interest

Interest that is figured on the base amount initially invested or borrowed, along with the previously gathered interest.

Exponential Functions

Mathematical functions representing growth or decay at a constantly increasing or decreasing rate, often used in modeling population growth or radioactive decay.

Compound Interest

This refers to interest earned or paid on the initial amount of a deposit or loan, plus any interest that has accrued over time.

Present Value

Present value is the current worth of a future sum of money or stream of cash flows given a specified rate of return.