Question

If f(x) =x/2 -3 and g(x) = 4x^2+ x-4, find( f + g )(x)

Answer 1

`f(x)=(x)/(2)-3=(1)/(2)x-3\\\\g(x)=4x^2+x-4\\\\(f+g)(x)=f(x)+g(x)\\\\(f+g)(x)=\left((1)/(2)x-3\right)+(4x^2+x-4)=4x^2+1(1)/(2)x-7`