Which is equivalent to rootindex 5 startroot 1,215 endroot superscript x?

243x
1,215 superscript one-fifth x
1,215 superscript startfraction 1 over 5 x endfraction
243 superscript startfraction 1 over x endfraction

1,215 Superscript one-fifth x

Step-by-step explanation:

Given:

The expression to simplify is given as:

We know that,

Here,

So,

So, the above expression becomes:

Now, using the law of indices

Here,

So, the expression is finally simplified to;

Therefore, the second option is the correct one.

= 1,215 Superscript one-fifth x

b. 1,215 Superscript one-fifth x

Step-by-step explanation: