Explain why the square root of -64 is undefined but the cubed root of -64 is defined in the real number system

Question

asked May 18, 2019 85.5k views

1 Answer

Josephthomas · Answer 1 · 2019-05-24T18:48:10+0000

Because there is no number that could be multiplied BY ITSELF and still be negative:
-2 x -2 = 4
2 x 2 = 4
But, cubed root works because a negative can be three times and still be negative:
-4 x -4 x -4 = -64
Hope this helps!

Explain why the square root of -64 is undefined but the cubed root of -64 is defined in the real number system

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

Please log in or register to add a comment.

No related questions found

Categories

Other Questions