Question

Find f(x) + g(x) when f(x) = 2x^2 + x and g(x) = 3x + 2

Answer 1

`f(x)+g(x)=2x^2+4x+2`

Explanation:

So we have the two functions:

`f(x)=2x^2+x\text{ and } g(x)=3x+2`

And we want to find:

`f(x)+g(x)`

So, substitute:

`=(2x^2+x)+(3x+2)`

Combine like terms:

`=2x^2+(x+3x)+2`

Add:

`=2x^2+4x+2`

So:

`f(x)+g(x)=2x^2+4x+2`

And we're done!

Answer 2

2x^2 + 4x+2

Explanation:

f(x) = 2x^2 + x and g(x) = 3x + 2

f(x) + g(x) = 2x^2 + x + 3x + 2

Combine like terms

= 2x^2 + 4x+2