Subtract the polynomials. (y^3+6x^2y^2-4xy-8)-(2y^3-7x^2y^2-2 xy-y+8)

In the diagram, points d and e are marked by drawing arcs of equal size centered at b such that the arcs intersect ba and bc. then, intersecting arcs of equal size are drawn centered at points d and e. point p is located at the intersection of these arcs. based on this construction, m , and m