The graph of f(x) = x4 – 3x3 x2 3x – 2 is shown. On a coordinate plane, a line decreases through (negative 1, 0) to (negative 0.5, negative 3), increases through (0, negative 2) to (1, 0), decreases to (1.75, negative 0.25), and then increases up through (2, 0). Use the graph to answer the question. What is the solution of x4 – 3x3 x2 3x – 2 < 0? (−1, 2) [−1, 2] (−1, 1) ∪ (1, 2) (−1, 1] ∪ [1, 2)