0 votes 0 votes Show that the set of real numbers that are solutions of quadratic equations $ax^{2} + bx + c = 0,$ where $a, b,$ and $c$ are integers, is countable. Set Theory & Algebra kenneth-rosen discrete-mathematics set-theory&algebra descriptive + – admin asked Apr 21, 2020 admin 212 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.