College Algebra CLEP Prep Practice Exam

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According to the Quadratic Formula, what is the value of x in the equation x^2 + 7x + 10 = 0?

  1. 2

  2. -2

  3. 5

  4. -5

The correct answer is: -2

The Quadratic Formula is used to solve quadratic equations in the form of ax^2 + bx + c = 0, where a, b, and c are constants. In this particular equation, a = 1, b = 7, and c = 10. Plugging these values into the Quadratic Formula, we get x = (-b ± √(b^2 - 4ac)) / 2a. Simplifying, we get x = (-7 ± √(49 - 40)) / 2 = (-7 ± 3) / 2. So, the two possible values of x are (-7 + 3)/2 = -2 and (-7 - 3)/2 = -5. However, the correct answer is -2 because -2 is the only value that satisfies the given equation when substituted for x. This is why

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