Question

1.Suppose f(x)=6x^2+2x-7 and g(x)=4x-3.Find Each Of The Following Function.

a. (f+g)(x)
b.(f-g)(x)

2.Suppose f(x)=2x-3x and g(x)=1-2x. Find Each Of The Following Functions.
a. (f+g)(x)
b.(f-g)(x)

Answer 1

(1)

(f+g)(x) = 6x^2+2x-7+4x-3=6x^2+6x-10

(f-g)(x)=6x^2+2x-7-4x+3 = 6x^2-2x-4

(2)

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

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