Ask Question
25 January, 15:24

How do you factorise x^2 - 9.

+1
Answers (1)
  1. 25 January, 15:49
    0
    X ^ 2 - 9

    = x ^ 2 - 3 ^ 2

    It turns into 3 ^ 2

    Because 3 ^ 2 = 9

    The final answer is

    = (x + 3) (x - 3)

    remember the formula:

    a^2 - b^2 = (a+b) (a-b)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “How do you factorise x^2 - 9. ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers