Taking the square root of a negative value raised to an even power, root

Taking the square root of a negative value raised to an even power, root

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

Created by

Quizizz Content

FREE Resource

The video tutorial explains the concept of negative C to the 4th power and addresses the confusion around taking the square root of a negative number. It clarifies that you can rewrite the expression to avoid dealing with negative square roots directly. By squaring and then taking the square root, the operations cancel each other out, resulting in a positive value.

Read more

5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why might someone think you cannot take the square root of a negative number?

Because negative numbers are not real numbers.

Because square roots always result in positive numbers.

Because of a common misconception about negative exponents.

Because negative numbers do not have square roots.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of rewriting expressions with negative exponents?

To change the value of the expression.

To simplify the expression.

To avoid taking the square root of a negative number.

To make the expression more complex.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you rewrite the expression -3C^4 to avoid taking the square root of a negative number?

-3C^2 squared

-3C^3 squared

-3C^5 squared

-3C^6 squared

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens when you square a number and then take the square root?

The result is always negative.

The original number is doubled.

The operations cancel each other out.

The original number is halved.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of squaring -3C and then taking the square root?

A negative number

Zero

An imaginary number

A positive number