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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Solve for x in the equation x2 – 9 = 0

–3 and 3
0 and 9
–9 and 0
9 and 0

The correct answer is: –3 and 3

The correct solution is A –3 and 3. The equation is in the form of x^2 – 9, which can be factored into (x – 3)(x + 3). In order for this to equal 0, either x – 3 must equal 0 or x + 3 must equal 0. Solving for x in each case gives –3 and 3 as the solutions. The other options, B, C, and D, are incorrect because they do not satisfy the equation x^2 – 9 = 0. Option B does not have two solutions and options C and D have swapped the signs.