Question

(3+√2)²+(3-√2)²determine o valor das espressões

Answer 1

( 3 + √2)² + ( 3 - √2)²

(3 + √2) (3 + √2) + (3 - √2) (3 - √2)

9 + 3√2 + 3√2 + (√2)² + 9 - 3√2 - 3√2 + (√2)²

9 + 6√2 + 2 + 9 - 6√2 + 2

9 + 2 + 9 + 2

22