What is the exact value for the expression the square root of 56. − the square root of 14. + the square root of 126.? simplify if possible.

the square root of 14.

4 the square root of 14.

2 the square root of 42.

8 the square root of 42.

B-  

Step-by-step explanation:

Given equation : square root of 56 − the square root of 14 + the square root of 126    or    

Solution of the equation :

=

=

=

=14.966

Now,

Therefore, Option B is correct

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step-by-step explanation: