How can I get the second array value for my newton function

I'm trying to modify my code to 'store the initial guess and each of the results of N iterations of Newton's Method in a 1x(N+1) array' but I can't figure out why my second root approximation isn't showing.

This is what I have so far, any help would be appreciated.

clc
clear
% Function nto find root of
f = @(x) 3*x.^4- 2*x.^3 - 3*x.^2 + 2*x - (1/5);
 
%derivatieve
d = @(x) 12*x.^3 -6*x.^2 - 6*x + 2;
 
N = 2;
x = -2; 
approxArray = [x];
for n = 1 : 1 : N
 
  approxroot = ((x) - (f(x)./d(x)));
  x = approxroot;
    approxArray(N+1) = x;
end
 
disp(approxArray)

Answer 1

[Walter Roberson]

    approxArray(N+1) = x;

N is constant inside the loop, so you are always overwriting the same location. The variable that is keeping track of where you are in the loop is n