Solving a difference of two squares with a fraction, (1/25)h^2 - 16 = 0

The video tutorial covers the concept of squared numbers and how to factor expressions using the difference of squares. It explains how to handle fractions in equations and solve them by multiplying by reciprocals. The tutorial emphasizes understanding fractions as numbers and demonstrates step-by-step solutions to equations involving fractions.

Which of the following is a squared number?

• 35

• 20

• 25

• 30

How can the expression 1/25 be rewritten as a squared term?

• 1/5 squared

• 10 squared

• 5 squared

• 1/10 squared

What is the factored form of a^2 - b^2?

• (a + b)(a + b)

• (a + b)(a - b)

• (a - b)(a + b)

• (a - b)(a - b)

When setting the expression (1/5)H - 4 = 0, what is the next step?

• Multiply by 5

• Divide by 5

• Add 4 to both sides

• Subtract 4 from both sides

What operation is used to solve 1/5 = 4 for H?

• Subtraction

• Addition

• Multiplication by the reciprocal

• Division by the reciprocal