Adding

The four main operations of addition, subtraction, multiplication, and division can also be performed with functions. To add functions, combine like terms. *Step 1.* Replace *f(x)* and *g(x)* with their equivalent expressions.

*f*(*x*) + *g*(*x*)

(2*x ^{2}*) + (3

*Step 2.* Eliminate the parentheses and combine like terms.

2*x ^{2}* + 3

5*x ^{2}* + 1