Here's the new description with all links and additional text removed: Learn how to add or subtract radicals. A radical is a number or an expression under the root symbol. Radicals can only be added ...

Learn how to add or subtract two functions. Given two functions, say f(x) and g(x), to add (f+g)(x) or f(x) + g(x) or to subtract (f - g)(x) or f(x) - g(x) the two functions we use the method of ...