s = 2 (slider from -5 to 5)
t = -2 (slider from -5 to 5)
f(x) = x^(2) - 1
h(x) = s / x + t / x^(2)
g(x) = If[x < 1, f(x), h(x)]
A = Intersect(g, xAxis, (1, 0))