Question

For f(X) = 3X + 1 and g(X) = x2 - 6, find ( f+g ) (X)

A: X2 + 3X - 5
B: 3X3 - 5
C: 3X2 -17
D: X2 + 3X + 7 ​

Answer 1

x^2 +3x-5

Explanation:

f(x) = 3x + 1 and g(x) = x^2 - 6

(f+g)(x) = 3x+1+x^2 -6

Combine like terms

=x^2 +3x-5