Simplifying Radical Expressions with Variables

The video tutorial explores the application of radicals and exponents to variables, demonstrating that the same rules apply as with numbers. It provides examples of simplifying expressions involving square roots and fourth roots, emphasizing the importance of careful bookkeeping and the use of exponent laws. The tutorial aims to make these concepts more manageable and less intimidating.

What is the equivalent exponent form of the square root of a number?

• 3 power

• 1/2 power

• 2 power

• 1/3 power

Tags

CCSS.HSN.RN.A.2

How can you simplify the expression (25 * X^6 * Y^5)^(1/2)?

• 25^(1/2) * X^3 * Y^(5/2)

• 25^(1/2) * X^6 * Y^5

• 25^(1/2) * X^3 * Y^5

• 25^(1/2) * X^6 * Y^(5/2)

What is the simplified form of 25^(1/2)?

• 10

• 15

• 5

• 20

How can you express Y^(5/2) in another form?

• Y^3 * Y^(1/3)

• Y^2 * Y^(1/3)

• Y^3 * Y^(1/2)

• Y^2 * Y^(1/2)

Tags

CCSS.HSN.RN.A.2

What is the fourth root of 32 * R^6 * S?

• (32 * R^6 * S)^(1/2)

• (32 * R^6 * S)^(1/5)

• (32 * R^6 * S)^(1/4)

• (32 * R^6 * S)^(1/3)

How do you simplify the expression (32 * R^6 * S * 2 * R * S^4) / (4 * R^3 * S^2)?

• 16 * R^4 * S^3

• 8 * R^3 * S^2

• 8 * R^4 * S^3

• 16 * R^3 * S^2

What is the fourth root of 16?

• 2

• 4

• 3

• 5

How do you simplify R^4 to the 1/4 power?

• R^3

• R^4

• R^2

• R

What is the simplified form of S^(3/4)?

• S^(1/3)

• S^(3/4)

• S^(1/4)

• S^(1/2)

What is the key to simplifying complex expressions involving exponents and radicals?

• Multiplying all terms

• Using careful bookkeeping and canceling common factors

• Ignoring common factors

• Adding all exponents

Tags

CCSS.HSN.RN.A.2