Chapter 4.5, Problem 9WE

To determine

To find: The multiplication of the expression $3y^2-y-5$ and $2y$ .

Answer to Problem 9WE

The multiplication of the expression $3y^2-y-5$ and $2y$ is $6y^3-2y^2-10y$ .

Explanation of Solution

Given:

The expression is $\begin{array}{l}3y^2-y-5\\ \underset{\_}{2y}\end{array}$ .

Calculation:

The multiplication of the expression $3y^2-y-5$ and $2y$ is solved as follows:

  $\begin{array}{l}3y^2-y-5\\ \underset{\_}{\times 2y}\\ 6y^3-2y^2-10y\end{array}$

Thus, the multiplication of the expression $3y^2-y-5$ and $2y$ is $6y^3-2y^2-10y$ .