Simplifying the cube root of an expression using prime factorization

Simplifying the cube root of an expression using prime factorization

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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The video tutorial explains how to find the cube root of 64X^3. It begins with an introduction to cube roots and the problem setup. The teacher demonstrates using prime factorization to break down the number 64 into its prime factors. The solution involves identifying the number that, when multiplied by itself three times, equals 64, which is 2. The teacher then applies the same logic to find the cube root of X^3, which is X. The final answer is calculated as 4X, combining the results of both parts of the problem.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the cube root of a number asking for?

A number multiplied by itself four times

A number multiplied by itself once

A number multiplied by itself twice

A number multiplied by itself three times

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is the correct prime factorization of 64?

8 * 8

4 * 4 * 4

2 * 2 * 2 * 2 * 2 * 2

2 * 2 * 2 * 2 * 2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many times is the number 2 multiplied by itself in the prime factorization of 64?

Three times

Four times

Six times

Two times

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the cube root of X^3?

X

X^2

X^3

1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final answer when taking the cube root of 64X^3?

16X

2X

4X

8X