Positive and Negative Square Roots of a Number

Positive and Negative Square Roots of a Number

Introduction

Have you ever wondered what number, when multiplied by itself, gives a certain result? This idea leads to square roots. Square roots are important in math, science, engineering, and even computer ...

Luna has a square poster on her wall with an area of 144 square inches, and she wants to find the length of one side of the square poster.

She remembers that the area of a square equals the side length multiplied by itself.

To find the side length, she writes the equation x squared equals one hundred forty-four, where x represents th...