Question

f(x) = 2x + 6, g(x) = 4x2 Find (f + g)(x).

Answers are: 8x^3 + 24x
2x+6/4x^2
4x^2 + 2x + 6
-4x^2 + 2x + 6

Answer 1

hello : 
F(x) = 2x + 6, g(x) = 4x²
 (f + g)(x)= f(x) +g(x) = 4x²+2x+6

Answer 2

Answer:  The correct option is

(C) $4x^2+2x+6.$

Step-by-step explanation:  We are given the functions f(x) and g(x) as follows :

$f(x)=2x+6,\\\\g(x)=4x^2.$

We are to find the value of (f+g)(x).

We know that

for any two functions p(x) and q(x), we have

$(p+q)(x)=p(x)+q(x).$

So, we get

$(f+g)(x)\\\\=f(x)+g(x)\\\\=2x+6+4x^2\\\\=4x^2+2x+6.$

Thus, the required value is $(4x^2+2x+6).$

Option (C) is CORRECT.