Chapter 4.2, Problem 68CCR

To determine

To evaluate : the expression

Answer to Problem 68CCR

The solution of the expression is $96$ .

Explanation of Solution

Given information :

Consider, the expression is,

  $-8st$

And $s=-2\text{ and }t=6$

Calculation :

The value of expression is:

  $\begin{array}{l}-8st\\ -8\cdot -2\cdot 6\left[\text{replace }s\text{ with }-2\text{ and }t\text{ with 6}\right]\\ 96\end{array}$

Hence, the solution of the expression is $96$ .