= (√10 + 3√2)(√10 + 3√2)= (√10)² + 3√10√2 + 3√2√10 + (3√2)²= 10 + 6√20 + 6 + 9(2)= 10 + 6√20 + 6 + 18= 34 + 6√20
= (3√(2²)(2) - 2³√2)(3√(2²)(2) + 2³√2)= (3(2)√2 - 2³√2)(3(2)√2 + 2³√2)= (6√2 - 2³√2)(6√2 + 2³√2)= (6-2)² (2²+2) = 16.
= (√10 + 3√2)(√10 + 3√2)
(3√8-2³√2)(3√8+2³√2)= (√10)² + 3√10√2 + 3√2√10 + (3√2)²
= 10 + 6√20 + 6 + 9(2)
= 10 + 6√20 + 6 + 18
= 34 + 6√20
= (3√(2²)(2) - 2³√2)(3√(2²)(2) + 2³√2)
= (3(2)√2 - 2³√2)(3(2)√2 + 2³√2)
= (6√2 - 2³√2)(6√2 + 2³√2)
= (6-2)² (2²+2) = 16.