Question

When adding or subtracting nth root expressions, what rule should we follow?I mean

Answer 1

Step-by-step explanation

We can add or subtract radical expressions only when they have the same radicand(the number found inside a radical symbol) and when they have the same radical type such as square roots. However, it is often possible to simplify radical expressions, and that may change the radicand.

so

`\sqrt[n]{a^m\text{ }}^{}+\text{ }\sqrt[n]{b^m}`

so, in this case the expression can not be simplied more

I hope this helps you