Question

help pleasee

Answer 1

f(x) =x^2 -4 ; g(x) = x+ 2
which is equal to (f + g) (x)
x^2 -2
x^2 + 4x
x^2 + x -2
x^3 + 2x^2 -4x -8

Answer 2

@Dscdago can you help?

Answer 3

Here you are adding the functions together.

(f+g)(x)= f(x) + g(x)

so that means.

x^2-4 + x+2

Answer 4

You put similar variables together. or simplify.

Answer 5

2x^2 - 2?

Answer 6

Note that x^2 and x are not the same. They are separate.

Answer 7

They are different variables.

Answer 8

so x^2 + x - 2

Answer 9

Correct.