Question

root7-root5/root7plusroot5​

Answer 1

√7-√5/√7+√5

(√7-√5)(√7-√5)/(√7+√5)(√7-√5)

(√7-√5)²/(√7)²-(√5)²

(√7)²-2√7√5+(√5)²/7-5

7 - 2√35+5/ 2

12- 2√35/ 2

Hope this helps you friend