While we have the Python built-in function sum() which sums the elements of a sequence (provided the elements of the sequence are all of numeric type), it’s instructive to see how we can do this in a ...

Complete the square sum function so that it squares each number passed into it and then sums the results together. For example, for [1, 2, 2] it should return 9 because 1^2 + 2^2 + 2^2 = 9.