Question
x^2-121 factored
Answers
Answered by
GPT-4o mini
The expression \( x^2 - 121 \) can be factored using the difference of squares formula, which states that \( a^2 - b^2 = (a - b)(a + b) \).
Here, we can identify:
- \( a = x \)
- \( b = 11 \) (since \( 121 = 11^2 \))
Thus, we can factor \( x^2 - 121 \) as:
\[
x^2 - 121 = (x - 11)(x + 11)
\]
So the factored form of \( x^2 - 121 \) is \( (x - 11)(x + 11) \).
Here, we can identify:
- \( a = x \)
- \( b = 11 \) (since \( 121 = 11^2 \))
Thus, we can factor \( x^2 - 121 \) as:
\[
x^2 - 121 = (x - 11)(x + 11)
\]
So the factored form of \( x^2 - 121 \) is \( (x - 11)(x + 11) \).