Question

simplify (root 3 - root 7)(3+root 5)​

Answer 1

Answer:

$( \sqrt{3} - \sqrt{7} )( \sqrt{3} + \sqrt{5} ) = { (\sqrt{3} )}^{2} - ( { \sqrt{5} )}^{2} \\ = 3 - 5 \\ = - 2$

note that,( a+b)(a-b)=a²−b²

your answer is -2

hope it helps to you☺️