Question

(f+g)(x)=(x+9)+(x-9)
please explain steps

Answer 1

add
\[x+9+x-9=2x\] i think
what was the question?

Answer 2

find (fx+g)(x)

Answer 3

i got x^2-81

Answer 4

that would be \(f\times g(x)\)

Answer 5

add means add them

Answer 6

the answer is 2x and i dont understand y

Answer 7

do you have:
f(x) =
and
g(x) =
??

Answer 8

no please explain

Answer 9

the problem you posted askes for the sum of f(x) + g(x). I was wondering if they gave you what each of these functions are...

Answer 10

no thats all that was given

Answer 11

oh nvm this stupid thing confused me with the parantheses i thought i was supposed to foil because of the aprantheses which confuse me wow........ such a fail i get it now

Answer 12

(f+g)x means f(x) + g(x)
however you have been directly given (f+g)x = (x+9)+(x-9)
open the brackets and write
x + 9 + x - 9
rearrange
x + x + 9 - 9
cmbine like terms.
(x + x) + (9-9)
9-9 = 0
and x +x= 2x
so final answer is 2x + 0 = 2x