Question

how to solve this question​

Answer 1

Hope it helps u

this answer is correct

Answer 2

Step-by-step explanation:

(√5+√3)(√5-√3)/7-2√5

we know

(a+b)(a-b) = a square- b square

so

(√5) square - (√3) square/ 7-2√5

5-3/7-2√5

2/7-2√5