Determine the remaining roots of f(x) given that r is the root . Then rewrite f(x) in the factored form and sketch its graph. f(x) = 3x^4 + 10x^3 + 3x^2 - 12x - 4; r = -2 is double root. Determine all remaining roots. X = (Simplify the answer) Write completely factored form of f(x). f(x) = ..... Draw the graph of f(x).