Question

What is? f(x)=x squared by 2+2 and g(x)=-x+6. Find (g-f)(-1) simplify your answer

Answer 1

See below

Explanation:

Given `f(x)=x^2+2` and `g(x)=-x+6` then `(f-g)(x)=f(x)-g(x)=x^2+2-x-6=x^2-x-4`

Evaluate in `x=-1`

`(f-g)(x)=(-1)^2-(-1)-4=-2`