Cube Roots and Inverse Operations

Cube Roots and Inverse Operations

Assessment

Interactive Video

Mathematics

9th - 10th Grade

Hard

Created by

Thomas White

FREE Resource

The video tutorial explains how to solve equations involving cube roots by isolating the cube root term before applying inverse operations. The teacher emphasizes the importance of checking solutions to ensure accuracy. Key steps include subtracting any added terms to isolate the cube root, cubing both sides to eliminate the root, and verifying the solution by substituting back into the original equation. The tutorial also highlights the importance of understanding inverse operations and isolating terms for effective problem-solving.

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in solving an expression involving a cube root?

Divide both sides by 2

Add a constant to both sides

Isolate the cube root

Multiply both sides by 2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it important to isolate the cube root before applying inverse operations?

To ensure the operation is applied correctly

To make the equation more complex

To avoid using a calculator

To simplify the expression

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the inverse operation of a square root?

Cubing

Taking the fourth root

Squaring

Dividing by two

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of subtracting 4 in the equation involving the cube root of 2x?

To make the equation more complex

To simplify the solution

To isolate the cube root

To add complexity to the problem

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What operation is used to undo a cube root?

Divide by three

Square the number

Cube the number

Take the square root

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

After isolating the cube root, what is the next step?

Cube both sides

Divide both sides by the coefficient

Add a constant to both sides

Subtract a constant from both sides

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of cubing both sides of the equation 2x = 8?

2x = 4

2x = 8

2x = 64

2x = 16

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