Determine whether each expression is a polynomial. If it is a polynomial, find the degree and determine whether it is a monomial, binomial, or trinomial.

1. 7a^2b + 3b^2 – a^2b

2. 6g^2h^3k

1 answer

if there are all positive exponents, then it is a polynomial.

Terms are separated by +/- signs, so just count the terms to determine the type.

Add the exponents in each term; the highest sum is the degree of the polynomial.