Question

Find (f+g)(x) if f(x)=3x+5 and g(x)=-2x^2-5x+3,

A. (f+g)(x)=-2x^2=8x=8
B.(f+g)(x)=-2x^2-2x+8
C.(f+g)(x)=-4x+8
D.(f+g)(x)=-2x+8

Answer 1

B

Explanation:

Answer 2

(f+g)(x)=f(x)+g(x)= (3x+5) + (-2x^2-5x+3) = -2x^2 -2x +8 (B)