Question

Dan factored x^2+121 into (x+1-11)

Answer 1

Answer:

Your question is a little unclear.  If you are just trying to factor x² + 121, it's prime.  (can't be factored using real numbers).

Step-by-step explanation:

The difference of two squares is a special form.  a² - b² = (a+b)(a-b).  

But, the sum of two squares is prime.  a²+ b² cannot be factored.