Chapter 9, Problem 17SGR

To determine

To calculate: To evaluate the expression if $w=-\frac{3}{4}$ , $x=4$ , $y=1$ and $z=-5$

Answer to Problem 17SGR

On evaluating, the expression is $10$

Explanation of Solution

Given information: Expression is $x^2-6$

Calculation:

Expression is given as follows:

  $x^2-6$

To evaluate the above expression, substitute the values and simplify

  $\begin{array}{l}{x}^2-6={\left(4\right)}^2-6\\ x^2-6=16-6\\ x^2-6=10\end{array}$

Conclusion:

Hence, expression is $10$