//Sample07_131.java
class Sample07_131 {
    static double[] method_04(double a, double b, double c){

        double[] ans = {(2*a) , -b ,  (b*b-4*a*c)};
        return ans;
    }
    static void printAnswer(double[] ans){
      double partA = ans[0];
      double partB = ans[1];
      double partC = ans[2];

      System.out.println("          " + partB + "  +/-sqrt( "+ partC +" )");
      System.out.println("    x = -------------------------");
      System.out.println("                " + partA);
    }
    public static void main(String[] args){

        int a=2;
        int b=3;
        int c=-4;

        System.out.println(
            (int)a + "xx+" + (int)b +"x+" +(int)c +"=0"
        );

        double[] ans = method_04(a, b, c);
        printAnswer(ans);
    }
}