public static void main(String[] args) {
    	double a = 3; // a is the coefficient of the x^2 term
    	double b = 7; // b is the coefficient of the x term
    	double c = -5; // c is the constant term
    	
    	System.out.printf("%fx^2+%fx+%f has %d real roots.", a, b, c, numRoots(a, b, c)); // Print the polynomial and how many roots it has
    }