[완료]연산자 오버로딩중에 자꾸 에러가 생깁니다.

#include "Polynomi.h"
 
int main()
{
	Polynomial P1;
	Polynomial P2;
	Polynomial Result;
	int n;
 
	P1.Input();
	P2.Input();
 
	//P1.Add(P2);
	P1.Mul(P2);
 
	cout << P1; <-- 여기에서 에러!!
	cout << "x의 값을 입력하세요 : ";
	cin >> n;
	cout << Result.Answer(P2.Size, n) << endl;
 
	return 0;
}

#include <iostream>
using namespace std;
 
class Polynomial;
 
class term{
	friend Polynomial;
 
	public:
		float coef;
		int exp;
};
 
class Polynomial{
	public :
 
		int Size;
		Polynomial(int size = 0);
		~Polynomial();
		friend ostream& operator << (ostream& os, const Polynomial &P);
		int Input();
		int Add(Polynomial P2);
		int Mul(Polynomial P2);
		int Answer(int size, int n);
		static term* TermArray; <-- 요기로 옮김
 
	private :
		static int Maxpoly;
		//static term* TermArray; <-- 사용이 안되어서 위쪽으로 옮김
		static int TermCount;		
		int doubleExten();
		term* SingleMul(Polynomial P2, int counter);
		term* Add(term* temp1, term* temp2);
};
 
ostream& operator << (ostream& os, const Polynomial &P)
{	
	int i;
 
	os << "입력된 다항식은 : ";
		for(i=0; i<P.Size; i++){
			os << P.TermArray[i].coef << "x" << P.TermArray[i].exp << "+";
		}
	os << endl;
 
	return os;
}