Enter Polynomial as a single variable of x: (eg. 7x^8-5x^3-2x^2+x-19)
Click on analyze and it will give you the real roots (answers to solving it
for 0) and the turning points of the polynomial
with a graph-draw a box round a region to zoom in on that region.
Thanks to Dewi Williams for this applet you can email her @ mauay@warwick.ac.uk