Question

-√64 rational or irrational?

Answer 1

this would be rational the square root of 64 is 8 so the square root of -64 would be -8 and negative 8 ends there for making it rational.

Answer 2

Take the square root of 64.

You get 8.

-sqrt(64) = -8

-8 is rational since it can be written as a fraction of integers.