Question

F(a) = 2a - 1
g(a) = 4a
- 1
Find f(a) + g(a)

Answer 1

`f(a)+g(a)=6a-2`

Explanation:

So we have the two functions:

`f(a)=2a-1\text{ and } g(a)=4a-1`

And we want to find f(a) + g(a).

So, substitute:

`f(a)+g(a)`

This is the same as:

`=(2a-1)+(4a-1)`

Combine like terms:

`=(2a+4a)+(-1-1)`

Add or subtract:

`=6a-2`

And we're done!