College Math CLEP Prep Practice Exam

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If x is an integer, which of the following is not an equation?

x2 + 2x + 3 = 0
x2 – 3 =2
x = 2
x2 + 3 > 2

The correct answer is: x2 + 3 > 2

An equation is a mathematical statement that uses an equal sign to show that two expressions are equal. Option A, B and C all contain equal signs and thus are considered equations. However, in option D, the greater than sign (>), is used to show an inequality rather than an equation. Therefore, option D is not an equation.