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If x = 3, what is the value of (x + 1)(x - 1)?

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Question: If x = 3, what is the value of (x + 1)(x - 1)?

Options:

  1. 8
  2. 10
  3. 6
  4. 12

Correct Answer: 8

Solution: 

(3 + 1)(3 - 1) = 4 * 2 = 8.

If x = 3, what is the value of (x + 1)(x - 1)?

Practice Questions

Q1
If x = 3, what is the value of (x + 1)(x - 1)?
  1. 8
  2. 10
  3. 6
  4. 12

Questions & Step-by-Step Solutions

If x = 3, what is the value of (x + 1)(x - 1)?
  • Algebraic Expressions – The question tests the ability to evaluate a simple algebraic expression by substituting a given value for the variable.
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