Solve an Equation Using Square Roots

In this Math Test Prep video, the instructor guides students through solving a standardized test question using square roots. The problem involves finding the value of x in the equation x squared equals 256. The instructor explains the inverse operation of squaring, which is finding the square root, and demonstrates how to evaluate multiple choice answers to identify the correct solution. The video concludes with the correct answer, negative 16, and a brief explanation of why it is the solution.

What is the main topic of the Math Test Prep session?

• Exploring geometric shapes

• Solving equations using square roots

• Learning about addition and subtraction

• Understanding multiplication tables

What is the inverse operation of squaring a number?

• Adding the number to itself

• Finding the square root

• Multiplying by two

• Dividing by the number

Which value, when multiplied by itself, equals 256?

• 12

• 14

• 18

• 16

Why can we rule out the option of negative 4 as a solution?

• Because negative 4 is greater than 256

• Because negative 4 is not a real number

• Because negative 4 is not a whole number

• Because negative 4 times negative 4 equals positive 16

What are the possible square roots of 256?

• Only positive 16

• Only negative 16

• Both positive and negative 16

• Neither positive nor negative 16