Given f(x)=5x2−4x and g(x)=−3x2−8 how do you find (f + g)(2)?
1 Answer
Feb 13, 2016
- 8
Explanation:
begin by adding f(x) and g(x) together.
f(x)+g(x)=5x2−4x−3x2−8=2x2−4x−8 now (f+g)(2) means evaluating the sum when x = 2
2x2−4x−8=2(2)2−4(2)−8=8−8−8=−8
