Question

^^ HELP WIT ABOVE = 10$BTC​

Answer 1

1. (3 + √3) (2 + √2)

= 6 + 3√2 + 2√3 + √6

2. (3 + √3) (3 - √3)

= (3)^2 - (√3)^2

= 9 - 3

= 6

3. (√5 + √2)^2

= (√5)^2 + 2√10 + (√2)^2

= 5 + 2√10 + 2

= 7 + 2√10

4. (√5 - √2) (√5 + √2)

= (√5)^2 - (√2)^2

= 5 - 2

= 3