For the equations 2x3 – 5x2 + x + 2 = 0, 2x3 – 3x2 – 11x + 6 = 0, 12x3 + 16x2 – 5x – 3 = 0 and 3x3 + 7x2 – 22x – 8 = 0. Use a graphing utility to graph the polynomial function defined by the left side of the equation. Use end behavior to obtain a complete graph. Then use the graph’s x-intercepts to verify your solutions.
