Verified answer

a) (√3 + 1)² =>

3 + 2√3 + 1

4 + 2√3 --> colocando em evidencia

2( 2 + √3)

>>>>>>>>>>>>>>>>>>>>>>>>>>>

b) (3 - √2)²

9 - 6√2 + 2

11 - 6√2

>>>>>>>>>>>>>>>>>>>>>>>>>>>

c) (√5 +√2)²

5 + 2√10 + 2

7 + 2√10

>>>>>>>>>>>>>>>>>>>>>>>

d) (√11 + √2) . (√11 - √2)

√11² - √2²

11 - 2

9

♦ Espero que tenha ajudado ♦