1+(K+1)(14)+12(1+2+3+....(K-1)+K)=X
Solve for K?
Is this solvable? as I said before haven't done maths for years and this is making my head spin. If any one could help that would be great!
Hi Soroban, thanks very much for your response.
Sorry I'm not really a maths guy hence the strangely written problem.
I think your answer was the one I was looking for but I was trying to solve for X at the end not K.
1+14(K+1)+12(1+2+3....+K)=X
And I think by your result I can see
6k^2+20K+15=X
which is awesome! That's what I was looking for thanks!