Chapter 9.3, Problem 4STP

For Exercises 1-7, choose the correct letter.

What is the side length of a square with an area of $144x^2?$

F. $12$

G. $12x$

H. $\pm 12x$

I. no solution

To determine

To find: The side length of a square with an area of $144x^2$ .

Answer to Problem 4STP

The side length of a square $=12x$ .

Explanation of Solution

Given information: Area of a square $144x^2$ .

Area of a square $144x^2$ .

Let side length of a square is a

Then, area of a square $=a^2$

  $a^2=144x^2$

Take the square root both side

  $a=\pm 12x$

The side length of a square $=12x$ .