Anonymous

# HOW DO YOU DO THE SQUARE ROUTE OF SOMETHING?

One of my exam questions may have this as a question, i need to revise and have no clue how to do a question on the square route, can someone please explain???? HELP

Relevance

When you square something, you multiply it by itself.

So, 3 squared is 3x3 = 9

Finding the square root of a number is the backwards process of squaring. You are trying to find the number that was squared to produce the one you have been given

Example:

Find the square root of 9

Ans: 3, because 3x3=9

• Anonymous

The square root of a number is what number times itself equals the number

ex: sqrt(x) = 10

x = 10^2 = 10 x 10 = 100,

so the sqrt(100) = 10

If it is on a test is it probably an easy one, start by squaring easy numbers, like 6 x 6, until you get the right answer. If the number is in between two easy squares, you know that it is a decimal somewhere between those two numbers.

• You can think of taking a square root as the opposite of squaring.

For example: 16 is equal to 4 squared (16 = 4 x 4)

The square root of 16 = 4

• You try to think of a number (let's say x) where

x² = TheNumberUnderTheRoot

When you have a big number under the root and you can't think of any x-number, you can do something like the following:

√144 = √(2*72) = √(2*2*36) = √(4*36) = √4 * √36 = 2 * 6 = 12