You still don't understand the definition of n-th root. The operation of finding the n-th root of a number is called opening the n power, a is called the root number, and n is called the root index, where a must be greater than 0.

Give the simplest example, 2? =4,(-2)? =4, so√ 4 = 2 or -2.

I don't know if you understand.

Satisfied, please adopt! thank you