Please help me fix this program?

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I'm extremely confused on this assignment I've been working on. I'm completely stuck on how to get print() and printRoots() to accept two different sets of variables and function in the same constructor. Here's the assignment:
Write a class that models a polynomial equation of the form:
The class should have 3 properties, A, B, and C. You are to provide several functions as well,
including an evaluate function that accepts an “x” and computes the results, and a findRoots function
that executes the quadratic formula to determine the equationʼs roots (x values which cause the
polynomial to evaluate to 0).
Details for the evaluate function:
The function should return a double. There should be a single parameter, called x. When called, the
function computes Ax2 + Bx + C using the polynomialʼs A, B, and C values and returns the result.
Details for the findRoots function:
The quadratic formula is used to find the value(s) of x that lead to the polynomial equaling zero. It is
defined as follows:
Where the two values found can be called root1 and root2. If the value of b2-4ac is negative there
are no real roots (the function never equals 0).
Your findRoots function should return true or false, depending on whether or not there are real roots
(if b2-4ac is positive). The function accepts two double values using pass by reference. If there are
roots, then those two parameters are set within the function.
On the next page is a main function that uses the Polynomial class. For this homework assignment,
you must use this EXACT program – without modification! It is posted as a separate file on
Moodle. You may of course add print statements to help you debug while you work, but I will expect
you to turn in the file without any of your modifications.
here's main that cannot be edited

#include <iostream>
#include "Polynomial.h"
using namespace std;

void printRoots(Polynomial p) {
	double r1 = 0, r2 = 0;

	if (p.findRoots(r1, r2)) {

		cout << "\twith roots at " << r1 << " and " << r2 << endl;
	}
	else {

		cout << "\tNo Roots" << endl;
	}

}


int main() {

	Polynomial p1(14, 19, 2); // Provide a constructor to set A, B, C

	Polynomial p2;

	// Default constructor should initialize to all zeros

	double tmp;

	cout << "Enter A:  ";
	cin >> tmp;
	p2.setA(tmp);

	cout << "Enter B:  "; // A, B, and C need to be private variables - supply getters and setters.
	cin >> tmp;
	p2.setB(tmp);

	cout << "Enter C:  ";
	cin >> tmp;
	p2.setC(tmp);

	cout << "Two polynomials will be used:  " << endl;
	cout << "P1: Predefined:  ";
	p1.print(); // Should print as 14x^2 + 19x + 2

	cout << "P2: User-Defined: ";
	p2.print(); // Should print in the same format, but with the user-entered values.

	cout << "Enter an x value to evaluate both polynomials: ";
	cin >> tmp;

	cout << "P1: " << p1.evaluate(tmp) << endl;
	printRoots(p1);
	cout << "P2: " << p2.evaluate(tmp) << endl;
	printRoots(p2);

polynomial.h

#ifndef POLYNOMIAL_H
#define POLYNOMIAL_H

class Polynomial {
public:

	double x, p1, p2;
	int a1, b1, c1;

	Polynomial();
	Polynomial(double a1, double b1, double c1);

	double evaluate(double x);
	double findRoots(double &r1, double &r2);
	double setA(double a);
	double setB(double b);
	double setC(double c);
	void print();

private:

	double a, b, c;

};

#endif // POLYNOMIAL_H  

source.cpp

#include "Polynomial.h"
#include <iostream>
#include <cmath>

using namespace std;

double tmp;

Polynomial::Polynomial() {

	x, a, b, c = 0;

}

double Polynomial::Polynomial(a1, b1, c1){



}

double Polynomial::evaluate(double x){

}


// j * pow (x, 2) + k * x + c = 0


double Polynomial::setA(double a){

	a = tmp;
}

double Polynomial::setB(double b){

	b = tmp;

}

double Polynomial::setC(double c){

	c = tmp;

}

void Polynomial::print(){

}

and sample output that I should get
Enter A:1
Enter B:1
Enter C:1
Two polynomials will be used:
P1: Predefined:
14x^2 + 19x + 2
P2: User-Defined: 1x^2 + 1x + 1
Enter an x value to evaluate both polynomials: 8
P1: 1050
with roots at -0.11501 and -1.24213
P2: 73
No Roots