Question

by using square root table find the square root up on two decimal places of 84​

Answer 1

Answer:  

heya.......

± 2 √ 21

Step-by-step explanation:

We can break down  

√ 84

into the following:

√ 4 ⋅ √ 21

We are able to do this because of the property  

√ a b = √ a ⋅ √ b

Where we can separate the radical into the product of the square root of its factors.  

21 and  4 are factors of  84

.

In  √ 4 ⋅ √ 21

, we can simplify to get:

± 2 √ 21

*NOTE: The reason we have a ± sign is because the square root of  4 can be positive or negative  2 . √ 21

has no perfect squares as factors, so this is the most we can simplify this expression.

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Answer 2

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