Question

pls answer this question​

Answer 1

Answer:

This ques can be solved by applying the identity (a-b) ^2=a^2+b^2-2ab

Step-by-step explanation:

so, applying identity we get (√3) ^2+(√7) ^2-2(√3×√7)

3+7-2√21

10-2√21

=2(5+√21)

Answer 2

Answer:

the answer is the 2nd option....

I'm sorry if I'm wrong....