My Learning Cart
?
Categories
Account

Find the value of x in the equation x^2 - 9 = 0.

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

What’s inside this PDF?

Question: Find the value of x in the equation x^2 - 9 = 0.

Options:

  1. 3
  2. -3
  3. 0
  4. 9

Correct Answer: 3

Solution: 

Factoring gives (x - 3)(x + 3) = 0. Thus, the solutions are x = 3 and x = -3.

Find the value of x in the equation x^2 - 9 = 0.

Practice Questions

Q1
Find the value of x in the equation x^2 - 9 = 0.
  1. 3
  2. -3
  3. 0
  4. 9

Questions & Step-by-Step Solutions

Find the value of x in the equation x^2 - 9 = 0.
  • Step 1: Start with the equation x^2 - 9 = 0.
  • Step 2: Recognize that x^2 - 9 is a difference of squares, which can be factored.
  • Step 3: Factor the equation into (x - 3)(x + 3) = 0.
  • Step 4: Set each factor equal to zero: x - 3 = 0 and x + 3 = 0.
  • Step 5: Solve the first equation x - 3 = 0 to find x = 3.
  • Step 6: Solve the second equation x + 3 = 0 to find x = -3.
  • Step 7: The solutions are x = 3 and x = -3.
  • Quadratic Equations – The question tests the ability to solve a simple quadratic equation by factoring.
  • Factoring – The solution involves recognizing how to factor a difference of squares.
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