Before I get completely obfuscatory with this, let me try to explain what I m trying to accomplish: I want to generate a display of an x solution for each value of n to the expression x^n - sum(x^i,i=0..n-1)=0 where n=2..12. Would anyone be able to provide the proper Maple expression(s). Thanks.

How does one get Maple to solve F=ma problems like r:=t->; When I try diffeq:=Diff(r,t$2)+(r.r)^(-3/2)=0; I get > sol:=dsolve(diffeq,r(t)); Error, (in ODEtools/info) expected an ordinary differential equation. Received: 1/(r^2)^(3/2) = 0