f(x) = sqrt((x^(2) + (2 * x) - 3)^(2)) - (x^(2) + (2 * x) - 3)
text1: "f(x)=" + (LaTeX[f]) + ""
eq1: sqrt((x^(2) + (2 * x) - 3)^(2)) = x^(2) + (2 * x) - 3