Question

How to get a square root of a given number​

Answer 1

Example of Calculating Square Roots with Multiplication :

• The square root of 9 is 3. The number 9 is an integer. This number comes from multiplying 3×3 which results in the number 9
• The square root of 25 is 5. The number 25 is an integer. This number comes from multiplying 5×5 which results in the number 25
• The square root of 81 is 9. The number 81 is an integer. This number comes from multiplying 9×9 which results in the number 81
• The square root of 100 is 10. The number 100 is an integer. This number comes from multiplying 10×10 which results in the number 100

Example of Calculating Square Roots by Division

• The square root of 4 is 2. The number that divides 4 is the number 2, like 4: 2 makes the number 2. It cannot be divided anymore and can be multiplied by itself.
• The square root of 9 is 3. The number that divides 9 is the number 3, such as 9: 3 to produce the number 3. It cannot be divided anymore and can be multiplied by itself.
• The square root of 25 is 5. A number that divides 25 is 5, as 25:5 makes 5. It is indivisible and can be multiplied by itself.

Answer 2

See below

Explanation:

The square root of a number is defined as
`\pm y=\sqrt[2]{x}` where
`(\pm y)^(2)` gives the original number. For example,
`√(4)=\pm2` because
`2^(2)=2*2=4` and
`(-2)^(2)=-2*-2=4`.