Question

simplify
1. (√3-√5)²
2. (√3+√5) (√3-√5)
3. (√5-√2) (√5+√2)
4. (√5+√2)²
what are the answers for these questions please show with full steps.
please help me.
these questions are from chapter number systems class 9th.

Answer 1

Answer:

........ hope it's helpful

Answer 2

1.answer is 8-2√15

(√3-√5)² is second answer

√5² -√2² is third answer

7+2√10 is fourth answer