Question

x²= (2✓6)² + (2✓10)²

Answer 1

Resolução:

x² = (2✓6)² + (2✓10)²

x²= 2² . (✓6)² + 2² . (✓10)²

x² = 4 . 6 + 4 . 10

x² = 24 + 40

x² = 64

x = +- √64

x = +- 8

x' = 8

x'' = - 8