College Algebra CLEP Prep Practice Exam

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What is the value of (2x + 3)(x - 5) when x = -2?

  1. -18

  2. 4

  3. 18

  4. -4

The correct answer is: 18

When solving this problem, we need to use the distributive property to expand the expression. First, we multiply 2x by each term in the second parenthesis, which gives us 2x^2 - 10x. Then, we multiply 3 by each term in the second parenthesis, which gives us 3x - 15. Combining these terms, we get 2x^2 - 7x - 15. When we substitute x = -2 into this expression, we get 2(-2)^2 - 7(-2) - 15 = 2(4) + 14 - 15 = 8 - 1 = 7. Therefore, the value of the expression is 18, making option C the correct answer. Other options are incorrect because - Option A (-18) is incorrect because we need to add the

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