Question

14. Find (f +g)(x) if f(x)=4 x²-5x and g(x)=3x²+6x-4.

(f +g)(x)=-x²+11x-4
(f +g)(x)=7x²+x-4
(f +g)(x)=x²-11x+4
(f +g)(x)=-x²-x⁴

Answer 1

(f +g)(x)=7x²+x-4

Step by step:

first you have to add both f(x) and g(x) to find (f +g)(x)