What is this symbol?

A radical
Simplify: √ 64
8
Simplify: √ 128
8√ 2
What is the √ 1?
1
What is the opposite of taking the square root of a number?
Squaring a number, or multiplying the number times itself. An exponent of 2.
Simplify: √ 121
11
Simplify: √ 245
7√ 5
How can we use a calculator to find factors?
TI:
y=, then divide the number by x. Click 2nd Graph to see the table of factors.
Desmos:
Divide the number by x. Click settings and convert to table. You can click in the x column and hit enter to get more factors.
What is the number under a radical called?
A Radicand
Simplify: √ 256
16
Simplify: 4√ 192
32√ 3
Simplify: 3√ 216
6
What is an index?
The number outside of the square root
Simplify: √ 361
19
Simplify: -2√ 294
-14√ 6
Simplify: 53√343
35