Given f(x) = 3x − 10 and g(x) = 12x + 8, solve for (f + g)(x) and select the correct answer below.

(f + g)(x) = 15x − 2
(f + g)(x) = 9x − 2
(f + g)(x) = 15x + 2
(f + g)(x) = 36x2 − 120x

Question

Given f(x) = 3x − 10 and g(x) = 12x + 8, solve for (f + g)(x) and select the correct answer below.

 (f + g)(x) = 15x − 2
 (f + g)(x) = 9x − 2
 (f + g)(x) = 15x + 2
 (f + g)(x) = 36x2 − 120x

anonymous · Answer

cAN SOMEONE HELP??

anonymous · Answer

i got 47\11 before but its not even an answer choice

nincompoop · Answer

add f(x) and g(x)

nincompoop · Answer

f(x) = 3x − 10; g(x) = 12x + 8
(f + g) (x)) = 3x -10 +12x + 8

anonymous · Answer

(f+g)(x)= 15x-2 ??

nincompoop · Answer

:) that is all you have to do, combine them using addition

anonymous · Answer

yea i tried before, and failed, i got 47 over 11 haha

nincompoop · Answer

I do not know what you did before, but you seem to get it now

anonymous · Answer

Thankyou :)