Taking the Square Root of Negative 4


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question 1 of 3

What is the square root of -4?

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1. If i is the square root of -1, what is 1^3 equal to?

2. If i is the square root of -1, what is i^4 equal to?

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About This Quiz & Worksheet

Finding the square root of a negative number might sound complicated, but, as with any math problem, it's a matter of using logic to solve the problem. This quiz/worksheet combo will check your knowledge of this process by providing practice problems to test your skills.

Quiz & Worksheet Goals

This quiz and worksheet cover the following:

  • Finding the square root of a negative number
  • Using i to find the square of a number
  • Identifying real numbers

Skills Practiced

These assessments use the following skills:

  • Reading comprehension - ensure that you draw the most important information from the related lesson on the square roots of negative numbers
  • Problem solving - use acquired knowledge to solve negative square root practice problems
  • Information recall - access the knowledge you've gained regarding real numbers and their importance to negative square roots

Additional Learning

Check your understanding of finding the square root of negative numbers by reviewing the lesson called Taking the Square Root of Negative 4. This lesson discusses the following:

  • Definitions for complex, real, and imaginary numbers
  • What we know about how positive and negative numbers can be multiplied together
  • Some properties of i