Question

For f(x) = x + 1 and g(x) = 2x^2 − x − 3, find (g − f)(x).

Answer 1

would this be a?

Answer 2

With functions, you can also apply the expansion rule.
Basically what the question is telling you to find is this:
\[(g - f)(x)= g(x) - f(x)\]
It can basically be rewritten as the above.

Answer 3

And your answer of "a" is not quite correct. Almost but you made a slight error with your calculation.

Answer 4

Hmm was it adding 1 o.o?