I would like to solve an equation like
solve( ((k^2)%17)==8,k)or
R = GF(17)
solve(R(k)^2==8,k)or as math equation: k^2 \equiv 8 \mod 17
This would be true for e.g. k=5
If I use the solve function above in sagemath I get an empty result [] for first and 'self must be a numeric expression' for second.
How can I solve such equation?
