Node polyRet = null;
		float Coef3 = 0;
		boolean flag = false;

		Node node1 = poly1;
		Node node2 = poly2;

		while(poly1 != null && poly2 != null) {

			if(poly1.term.degree == poly2.term.degree) {
				Coef3 = poly1.term.coeff + poly2.term.coeff;

			}
			else {
				// display both of them
				flag = true;
			}

			if(polyRet == null) {
				polyRet = new Node(Coef3, poly1.term.degree, poly1);
			}
			else {
				if (!flag) {
					polyRet.next.term = new Term(Coef3, poly1.term.degree);

				}
				else {
					polyRet.next.term = new Term(poly2.term.coeff, poly2.term.degree);
					//new Node(poly1.term.coeff, poly1.term.degree, null);
					//polyRet.next.next.term = new Term(poly1.term.coeff, poly1.term.degree);
				}
			}
			poly1 = poly1.next;
			poly2 = poly2.next;

		}

		return polyRet;