Question

Simplify √ 105 . A. 2√ 3 B. √ 105 C. 2√ 7 D. √ 42

Answer 1

`B. √(105)`

The multiples of 105 are 3,5,and 7 so none of them can come out of the square root so it cannot be simplified.

Answer 2

The answer is the option B

`√(105)`

Explanation:

we have

`√(105)`

we know that

`105=3*5*7`

so

substitute

`√(105)=√(3*5*7)` -------> it can not be simplified

therefore

the answer is

`√(105)` ----> the expression can not be simplified