Combine like terms when possible and write the polynomial in descending powers of the variable. Give the degree of the simplified polynomial. Decide whether the simplified polynomial is a monomial, a trinomial, or none of these.
-9n⁹ - 13n⁹ + 7n⁶ + 15n⁹ - 5n⁶

Question

Quizplus · Accepted Answer

The terms 9n, -13n, and +15n with the same power (19) combine to 11n with power 19, and the terms 7n and -5n with power 16 combine to 2n with power 16, resulting in a binomial.

Combine Like Terms When Possible and Write the Polynomial in Descending