# Math Help - F(x)

1. ## F(x)

I was wondering if (f+H)(x) would be (4x+x+5)x) if f(x)=4x and h(x) is x+5

2. $(f+h)(x) = f(x) + h(x)$. Therefore, given $f(x) = 4x$ and $h(x) = x + 5$, $(f+h)(x) = 4x + x + 5 = 5x + 5$.