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GRE
GRE Quantitative Reasoning Section

Comparison of Products and Squares for Prime Integers

Hard Arithmetic Integers

Let $x$ be an integer. We know that $x$ is a prime number greater than 2. Consider the following two quantities:

Quantity A: The value of $x^2 - 1$

Quantity B: The value of $(x - 1)(x + 1)$

Compare Quantity A and Quantity B. Determine which quantity is greater or if they are equal.

Hint

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