The sum of two sixth degree polynomial scan result in a cubic polynomial. Write a example of this.

The sum of two sixth degree polynomials can result in a cubic polynomial. Write an example of this.

(x^{6} + x^{5} + x^{4} + x^{3} + x^{2} + x + 1) + (-x^{6} - x^{5} - x^{4}) = x^{3} + x^{2} + x + 1