Question

If given f(x) = x + 4 and g(x) = –2x2 + 3x – 1, what is (f – g)(x)?

Answer 1

first expand the (f-g)(x) = fx-gx
now substitute the equations given for these 2 components
(x+4)-(-2x^2+3x+1)
then expand them
x+4+2x^2-3x-1
now collect the like terms
2x^2-2x+3

Answer 2

got it?