The excluded value of the function is -10.
To find the excluded value of the function (a value of x which the function cannot have), we need to find a case where the answer to the function will be undefined. A case when that happens is when a denominator is equal to zero. That means the excluded case in this function is where x + 10 is equal to zero, which means that the excluded value of the function is 0-10 which is -10.