Facebook અને Instagram Account કેવી રીતે Hack થાય છે | Hacking થી બચો

When `a \ne 0`, there are two solutions to `ax^2 + bx + c = 0` and they are `x = -b \pm \sqrt{frac{b^2-4ac}{2a}}`

`\left[\frac{123}{3456}\right]` `\left[\frac{123}{3456}\right]`