My Learning Cart
?
Categories
Account

What is the value of (x + 1)(x - 1)?

₹0.0
Login to Download
  • 📥 Instant PDF Download
  • ♾ Lifetime Access
  • 🛡 Secure & Original Content

What’s inside this PDF?

Question: What is the value of (x + 1)(x - 1)?

Options:

  1. x² + 1
  2. x² - 1
  3. x² - 2
  4. 1 - x²

Correct Answer: x² - 1

Solution: 

(x + 1)(x - 1) = x² - 1, which is the difference of squares.

What is the value of (x + 1)(x - 1)?

Practice Questions

Q1
What is the value of (x + 1)(x - 1)?
  1. x² + 1
  2. x² - 1
  3. x² - 2
  4. 1 - x²

Questions & Step-by-Step Solutions

What is the value of (x + 1)(x - 1)?
  • Step 1: Identify the expression you need to simplify, which is (x + 1)(x - 1).
  • Step 2: Recognize that this expression is in the form of (a + b)(a - b), where a = x and b = 1.
  • Step 3: Use the difference of squares formula, which states that (a + b)(a - b) = a² - b².
  • Step 4: Substitute a and b into the formula: a = x and b = 1.
  • Step 5: Calculate a², which is x², and b², which is 1² = 1.
  • Step 6: Apply the formula: (x + 1)(x - 1) = x² - 1.
No concepts available.
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely
Home Practice Performance eBooks