load(odes)$

eq: -x^6 +x^5 +2*x^4 -2*x^3 +x^2 +2*x -1 = 0;

P(x) := -x^6 +x^5 +2*x^4 -2*x^3 +x^2 +2*x -1;

solvet(eq,x);

wxplot2d([P(x)], [x, -1.5, 2]), wxplot_size = [640, 480]$