Radicals Practice #2: Simplifying Cube Roots

Front

What is a cube root?

Back

The cube root of a number is a value that, when multiplied by itself three times, gives the original number. It is denoted as @@ oot[3]{x}@@.

Tags

CCSS.8.EE.A.2

Front

Calculate @@ oot[3]{343}@@.

Back

7

Tags

CCSS.8.EE.A.2

Front

Calculate @@ oot[3]{125}@@.

Back

5

Tags

CCSS.8.EE.A.2

Front

Calculate @@ oot[3]{8}@@.

Back

2

Tags

CCSS.8.EE.A.2

Front

Calculate @@ oot[3]{27}@@.

Back

3

Tags

CCSS.8.EE.A.2

Front

What is the simplified form of @@2 oot[3]{64}@@?

Back

8

Front

What is the property of cube roots regarding multiplication?

Back

The cube root of a product is the product of the cube roots: @@ oot[3]{a imes b} = oot[3]{a} imes oot[3]{b}@@.

Front

What is the property of cube roots regarding division?

Back

The cube root of a quotient is the quotient of the cube roots: @@ oot[3]{rac{a}{b}} = rac{ oot[3]{a}}{ oot[3]{b}}@@.

Front

What is the cube root of a negative number?

Back

The cube root of a negative number is also negative. For example, @@ oot[3]{-8} = -2@@.

Tags

CCSS.8.EE.A.2

Front

How do you express cube roots in exponential form?

Back

Cube roots can be expressed as exponents: @@ oot[3]{x} = x^{rac{1}{3}}@@.