Question 174291
Use the following to answer the question
f(x)=-4x^2+5x+3 and g(x)=2x^2-3x-4

Find (f+g)(2)

We first find g(2).

Let x = 2

g(2) = 2(2)^2 -3(2) -4

g(2) = 8 - 6 - 4

g(2) = 8 - 10

g(2) = -2

We now plug -2 for x in the function f(x).

Let x = -2

f(x)=-4x^2+5x+3 

f(-2) = -4(-2)^2 + 5(-2) + 3

Simplify the above for f(-2) and you will find your answer.

Understand?