Question 756392
we are given:
f(x) = 2x^2 + 3x -4
and we need to find f(x+h) - f(x)
we know f(x) = 2x^2 +3x -4
we need to calculate f(x+h) = 2*(x+h)^2 +3*(x+h) -4
                            = 2*(x^2+2xh+h^2)+3x+3h-4
                            = 2x^2+4xh+2h^2+3x+3h-4
now f(x+h) -f(x) =
2x^2+4xh+2h^2+3x+3h-4-2x^2-3x+4
4xh+2h^2+3h
2h^2+4xh+3h
h*(2h+4x+3)