find out the small numbers which makes number obtain by multiplying 69129 become the complete cube, known as the cube root of the complete cube
Answers
Cube Root
A cube root goes the other direction:
3 cubed is 27, so the cube root of 27 is 3
3 cube root direction 27
The cube root of a number is ...
... a special value that when cubed gives the original number.
The cube root of 27 is ...
... 3, because when 3 is cubed you get 27.
tree root
Note: When you see "root" think
"I know the tree, but what is the root that produced it?"
In this case the tree is "27", and the cube root is "3".
Here are some more cubes and cube roots:
cube root direction
4
64
5
125
6
216
Example: What is the Cube root of 125?
Well, we just happen to know that 125 = 5 × 5 × 5 (if you use 5 three times in a multiplication you will get 125) ...
... so the cube root of 125 is 5
The Cube Root Symbol
cube root symbol
This is the special symbol that means "cube root", it is the "radical" symbol (used for square roots) with a little three to mean cube root.
You can use it like this: cube root 27 = 3 (we say "the cube root of 27 equals 3")
You Can Also Cube Negative Numbers
Have a look at this:
When we cube +5 we get +125: +5 × +5 × +5 = +125
When we cube −5 we get −125: −5 × −5 × −5 = −125
So the cube root of −125 is −5
Perfect Cubes
The Perfect Cubes are the cubes of the whole numbers:
Perfect
Cubes
0 0
1 1
2 8
3 27
4 64
5 125
6 216
7 343
8 512
9 729
10 1000
11 1331
12 1728
13 2197
14 2744
15 3375