1. Find the derivative: f(x) = (x^3-8)^(2/3)
2. Write and equation of the tangent line to the graph of y = f(x) at the point on the graph where x has the indicated value. f(x) = (3x^2 + 5x + 4)(4x + 3), x=0
3. Find the values of any relative extrema: f(x)=1/(x^2-1)