Question

If f(x) = 5x squared -3 and g(x) = x squared - 4x -8, find (f-g)(x)

Answer 1

`4x^2+4x+5`

Explanation:

`f(x)=5x^2-3\\g(x)=x^2-4x-8`

Set up an expression.

`5x^2-3-(x^2-4x-8)`

Distribute the negative (-1)

`5x^2-3-x^2+4x+8`

Solve / Simplify

`4x^2+4x+5`

I'm late, but I hope this helps!