Multiply.
\[
(x+11)(x-11)
\]
\[
(x+11)(x-11)=\square
\]
So, the final answer is \(\boxed{x^2 - 121}\)
Step 1 :Multiply the binomials (x+11) and (x-11) using the general formula for multiplying two binomials (a+b)(c+d) which is ac + ad + bc + bd. In this case, a=x, b=11, c=x, d=-11.
Step 2 :Substitute the values into the formula to get: x*x + x*(-11) + 11*x + 11*(-11)
Step 3 :Simplify the expression to get: \(x^2 - 121\)
Step 4 :So, the final answer is \(\boxed{x^2 - 121}\)