How would you solve a quadratic or nth degree congruence? For example how would I solve:
(x^2) + 2x -3 = 0 (mod 8 )
The Attempt at a Solution
I know this can be written like:
(x^2) + 2x = 3 (mod 8 ) but where would I go from here? and would I use the same approach for nth degree congruencies?