Chapter 9.3, Problem 15E

To determine

To solve: The equation $-3x^2-5=-5$ using square roots.

Answer to Problem 15E

The required solution is $x=0$

Explanation of Solution

Given information:

The given equation $-3x^2-5=-5$

Calculation:

  $\begin{array}{l}-3x^2-5=-5\\ -3x^2=0\end{array}$

(Add 5 to each side)

  $x^2=0$

(Divide each side by -3)

  $x=0$

(Take the square root of each side)

The only solution is $x=0$