College Algebra CLEP Prep Practice Exam

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Prepare for the College Algebra CLEP Test with our comprehensive practice exam. Study with flashcards and multiple choice questions, each offering clues and detailed explanations. Achieve your best score and excel in your exam!

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Which of the following equations has only positive real roots?

x2 - 3x - 4 = 0
x2 + 4x = 0
x2 - 4x = 0
x2 + 3x - 4 = 0

The correct answer is: x2 - 4x = 0

This equation has only positive real roots because both coefficients of x are negative, therefore the product of these roots must be positive. In the other options, either one or both coefficients of x are positive, which would result in at least one negative root. For example, in options A and D, the constant term is negative, which means one root would be negative. In option B, the coefficient of x is positive, which means one root would be negative.