# Teach me how to square root and cube root, and some tricks

2
by Kela

2015-09-27T15:22:12+08:00
You just multiply by the same number ,if square root you multiply twice and if cube root you multiply the same number in thrice..sana makatulong
i know like the cube of 2 is 8 and the cube root of 8 is 2
Let's check. I want to get the cube root of 27. You said that I multiply cube root root of 27 thrice to get its cube root. That's how you constructed your sentence "if square root, you multiply twice, if cube root, you multiply thrice". If I do that, I'll get 27. But the question is, what is the cube root of 27? The cube root of 27 is 3. And you get that either by memorizing the perfect roots and cubes, or by continuous division.
i thought it was 9??? the cube root of 27
oh yeah its three not nine
my mistake
2015-09-28T17:51:50+08:00
In finding the root of a number, just multiply that number by itself to get it's square root.

Example: 9x9 is equal to 81. Then, the square root of 81 is 9.

While in cube root. Just multiply itself thrice.

Example: 3X3X3 is equal to 27. Then, the cube root of 27 is 3.

You can also use the formula, (number times number) in finding the root of a squared number and (number times number times number) in cube.

thanks
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When you multiply the number by itself, you don't get the square root, you get the square of the number. When you multiply the number by itself thrice, you get its cubes, not cube root. You r example, 9 x 9 (you multiply the number 9 by itself). The answer 81 is the square of 9. To get the SQUARE ROOT of 81, use continuous division. You must memorize the divisibility rules. NOT multiply.