what is the 4 called

The Index

Step-by-step explanation:

A radical expression is composed of three parts:

The Radicand - The number or term under the horizontal bar of the radical symbol.

Radical Symbol - The Radical Symbol √

Index - The number near the "check" part of the radical symbol.

In the given expression, 4 is the index. We are supposed to find the 4th root of x to the third power.

Hope this helps.

hi there!

first we need to find out how much they are adding to each number to make the next number.

ex: 4 + 4 = 8, 8 + 8 = 16, and so on.

so continuing with 32,

32 + 32 = 64

64 + 64 = 128

128 + 128 = 256

256 + 256 = 512

4, 8, 16, 32, 64, 128, 256, 512

the 8th term of the sequence will be 512

hope this ! ~