Thread: Quadratic Equation. one equation doesnt work

With many other equations work, BUT with this one NOT.
Have no idea why )

Result shoud be -0.5 and -1/3(in double)
BUT console shows me -18.0 and -12.0

Here my class

package task1;
//ax^2 + bx + c = 0
import java.util.Scanner;
import static java.lang.Math.*;
 
public class QuadraticEquation {
    private double a;
    private double b;
    private double c;
    private double discriminant;
 
    public double getA() { return a; }
    public void setA(double a) {
        this.a = a;
    }
 
    public double getB() { return b; }
    public void setB(double b) { this.b = b; }
 
    public double getC() { return c; }
    public void setC(double c) { this.c = c; }
 
    private double getDiscriminant() {
        this.discriminant = pow(getB(),2.0) - 4*getA()*getC();
        return discriminant;
    }
 
/*
    public double scanDouble(){
        Scanner scanner = new Scanner(System.in);
        double number = scanner.nextDouble();
        return number;
    }
*/
    private void showEquation(){
        System.out.println("("+getA()+")x^2 +("+getB() + ")x + (" + getC() + ") = 0");
    }
 
    public void findResult() {
        showEquation();
        System.out.println("Розв'язки рівняння: ");
 
        double discr = getDiscriminant();
 
        if(discr < 0.0){
            System.out.println("x1 = ");
            System.out.println("x2 = ");
        } else
            if(discr == 0.0){
                double result = -getB() / 2.0*getA();
                System.out.println("x1 = " + result);
                System.out.println("x2 = " + result);
            } else {
                double result1 = ((double)-getB() + sqrt(discr) ) / 2.0*getA();
                double result2 = ((double)-getB() - sqrt(discr) ) / 2.0*getA();
                System.out.println("x1 = " + result1);
                System.out.println("x2 = " + result2);
            }
    }
}

Here my class-tester

package task1;
 
public class TestQE {
    public static void main(String[] args){
        QuadraticEquation qe1 = new QuadraticEquation();
        qe1.setA(-6);
        qe1.setB(-5);
        qe1.setC(-1);
 
        qe1.findResult();
    }
}

I understood. The problem was in brackets.
Should be
result1 = ( (-getB() + sqrt(discr)) / (2.0*getA()) );
result2 = ( (-getB() - sqrt(discr)) / (2.0*getA()) );