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!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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How many solutions does the equation x^2 - 4 = 0 have?

The correct answer is: 2

The equation x^2 - 4 = 0, also written as x^2 = 4, can be solved by taking the square root of both sides. This gives us two possible solutions x = 2 and x = -2. Therefore, this equation has 2 solutions. Option A is incorrect because the two solutions, x = 2 and x = -2, cannot be "zero." Option B is incorrect because, as previously mentioned, there are two solutions to this equation. Option D is incorrect because it is a multiple choice question and there cannot be 3 solutions for a quadratic equation. The two solutions are the result of taking the square root of both sides, not because of any other factor in the equation.