Chapter 4.3, Problem 29MR

To determine

To find: the expression $-2x^2$ for the given value of x .

Answer to Problem 29MR

For the given values of x the value of expression is $-18,0and-12.50$ respectively.

Explanation of Solution

Given information:

We have given expression is $-2x^2$

We have given expression is $-2x^2$

At $x=-3$

  $\begin{array}{c}-2x^2=-2{\left(-3\right)}^2\\ =-2\times 9\\ =-18\end{array}$

At $x=0$

  $\begin{array}{c}-2x^2=-2{\left(0\right)}^2\\ =0\end{array}$

At $x=2.5$

  $\begin{array}{c}-2x^2=-2{\left(2.5\right)}^2\\ =-2\times 6.25\\ =-12.50\end{array}$