Question

Let f(x) = 2x2 − 2x + 7 and g(x) = x2 + 9x − 6. Find f(x) − g(x).

Answer 1

put a minus sign between them
use parentheses

Answer 2

\[2x^2-2x+7-(x^2+9x-6)\] then distribute, combine like terms etc

Answer 3

You put a minus sign between the 2 functions and subtract them like so:
2x^2 - 2x + 7 - (x^2+9x-6)
Then you can simplify it. Do you know how to simplify by combining like-terms?