Try using the fact that to obtain the series for from and proceed from there.
Find a power series representation for the function and determine the raidus of convergence.
f(x) = x^2/(1-2x)^2
Im having trouble isolating it to 1/1-x.
Anyone who can hint me something would be greatly appreciated. You do not need to solve it, please help me simplify it to 1/1-x. Thanks.