How many ordered quadruples (a, b, c, d) satisfy a + b + c + d = 18 where a, b, c, and d are integers such that |a|, |b|, |c|, and |d| are each at most 10?
The number of quadruples that work is 1277.
Hi buddy, 1277 is the right answer.
Regards,
Connie R. Lawson
