A simple program to solve quadratic equations with

bool solver(float a,float b, float c, float &x1, float &x2)
{
	float delta = sqrt( (b*b) - (4*a*c) );

    if (!a)  return false; 
 
    x1 = ( -b + delta)/(2*a);
    x2 = ( -b - delta)/(2*a);

	return true;
}


int main()
{
	float a=2,
              b=4,
              c=-30; 
	

/*
 	printf("a = ");
	scanf("%f", &a);
	printf("b = ");
	scanf("%f", &b);
	printf("c = ");
	scanf("%f", &c);

*/

float x1,x2;
if ( solver(a, b ,c, x1, x2) ) 	printf("x1=%f\nx2=%f\n",x1,x2);
 
return 0;
}