package ifelsejava;

import java.util.Scanner;

import static java.lang.Math.*;

public class Main17 {

public static void main(String[] args) {

int a, b, c;

double x1, x2, root;

/**

* A quadratic equation is same as middle term, but quadratic equation

* can find exact value of x1 and x2.

* => x^2 - 5x + 6 = 0

*

* Here, a = 1, b = -5 and c = 6

*

* => x^2 - 3x - 2x + 6 = 0

* => x(x - 3) - 2(x - 3) = 0

* => x = 3, 2

*/

Scanner input = new Scanner(System.in);

System.out.println("Find all roots of a quadratic equation.\n");

System.out.print("Value of a: ");

a = input.nextInt();

System.out.print("Value of b: ");

b = input.nextInt();

System.out.print("Value of c: ");

c = input.nextInt();

root = sqrt(pow(b, 2) - (4 * a * c));

x1 = (- b + root) / (2 * a);

x2 = (- b - root) / (2 * a);

System.out.println("x1: " + x1 + "\nx2: " + x2);

}

}