91Ó°ÊÓ

$4^{-1}$

(a) Is it a monomial, binomial, or trinomial?

(b) What is its degree?

$(2y{)}^{-3}$

(a) Is it a monomial, binomial, or trinomial?

(b) What is its degree?

$p^{-3}·p^{-8}$

(a) Is it a monomial, binomial, or trinomial?

(b) What is its degree?

$\frac{x^4}{x^{-5}}$

(a) Is it a monomial, binomial, or trinomial?

(b) What is its degree?
${\left(3x^{-3}\right)}^2$

(a) Is it a monomial, binomial, or trinomial?

(b) What is its degree?

$\frac{24r^{3}s}{6r^2{s}^7}$

In the following exercises, determine if the polynomial is a monomial, binomial, trinomial, or other polynomial.

$\begin{array}{l}\left(a\right)5a^2+12ab−7b^2\\ \left(b\right)18x{y}^{2}z\\ \left(c\right)5x+2\\ \left(d\right)y^3−8y^2+2y−16\\ \left(e\right)−24\end{array}$

In the following exercises, subtract the polynomials.

$\text{Subtract}\left(5x^2-x+12\right)\text{from}\left(9x^2-6x-20\right)$

(a) Is it a monomial, binomial, or trinomial?

(b) What is its degree?

${\left(\frac{x^4{y}^9}{x^{-3}}\right)}^2$

(a) Is it a monomial, binomial, or trinomial?

(b) What is its degree?

$\left(8x{y}^3\right)\left(-6x^4{y}^6\right)$