Calculate expression

import java.util.Scanner;

public class CalculateExpression {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        double a = input.nextDouble();
        double b = input.nextDouble();
        double c = input.nextDouble();
        double f1 = ((a * a) + (b * b)) / ((a * a) - (b * b));
        f1 = Math.pow(f1, ((a + b + c) / Math.sqrt(c)));
        double f2 = Math.pow(((a * a) + (b * b) - Math.pow(c, 3)), (a - b));
        double averageABC = (a + b + c) / 3;
        double averageForm = (f1 + f2) / 2;
        double diff = Math.abs(averageABC - averageForm);

        System.out.printf("F1 result: %.2f; F2 result: %.2f; Diff: %.2f", f1, f2, diff);
    }
}