Yes, you can make complicated math functions easier by using addition and subtraction. Here are some important points:

1. What It Means: If we have two functions, $f(x)$ and $g(x)$, we can add or subtract them like this:

   • Addition: When we add, it looks like this: $(f + g)(x) = f(x) + g(x)$
   • Subtraction: When we subtract, it looks like this: $(f - g)(x) = f(x) - g(x)$

2. Example of Simplification:

   • Let’s say $f(x) = 2x + 3$ and $g(x) = x^2 - 1$.
   • For the sum: When we add these, it becomes: $(f + g)(x) = (2x + 3) + (x^2 - 1) = x^2 + 2x + 2$.
   • For the difference: When we subtract, it looks like this: $(f - g)(x) = (2x + 3) - (x^2 - 1) = -x^2 + 2x + 4$.

3. Why It Matters: Knowing how to add and subtract functions is really helpful. It helps us solve math problems, look at graphs, and work on calculus.