Question

plzz ans this..how to solve this

Answer 1

Step-by-step explanation:

$(5 + \sqrt{7} )(2 + \sqrt{7}) \\ \\ 5 \times (2 + \sqrt{7} ) + \sqrt{7} \times (2 + \sqrt{7} ) \\ \\ 10 + 5 \sqrt{7} + 2 \sqrt{7} + 7 \\ \\ 17 + 9 \sqrt{7}$

Answer 2

Answer:10+5root5+2root7+root35

Step-by-step explanation:first we will multiply digits of first bracket by the both(2) digits of the digits of second bracket

And then 2 digit of first bracket with the both(2) digits of second bracket and answer will come.

Hope you understood my language and whatever I want to tell you!