How to add similar radicals (specific answer)

You can only add or subtract radicals together if they are like radicals. You add or subtract them in the same fashion that you do like terms shown in Tutorial 25: Polynomials and Polynomial Functions. Combine the numbers that are in front of the like radicals and write that number in front of the like radical part.

is this a multiple choice question?

if so it's a and c

the answer is c.

for continuous functions, they continue in the same pattern and you have to find that pattern kinda like slope