Question

f(x) = x + 2 g(x) = x – 4 (f g)(x) = 2x – 2 x2 – 8 x2 – 2x – 8 x2 + 2x – 8

Answer 1

Answer:

Option C.

Step-by-step explanation:

The given functions are

$f(x)=x+2$

$g(x)=x-4$

We need to find the value of $(fg)(x)$.

Now,

$(fg)(x)=f(x)\cdot g(x)$

Substituting the values of given functions, we get

$(fg)(x)=(x+2)\cdot (x-4)$

$(fg)(x)=x(x-4)+2(x-4)$

$(fg)(x)=x^2-4x+2x-8$

$(fg)(x)=x^2-2x-8$

Therefore, the correct option is C.

Answer 2

Answer:

c

Step-by-step explanation: