Question

Simplification of (✓13+✓5) (✓13-✓5)=

Answer 1

hope this helps you....

Answer 2

Given :-

• (✓13+✓5) (✓13-✓5)

Solution :-

Apply identity : a² - b² = (a + b)(a - b)

→ (✓13+✓5) (✓13-✓5)

→ (√13)² - (√5)²

→ 13 - 5

→ 8

Extra Information :-

• (a + b)² = a² + b² + 2ab
• (a - b)² = a² + b² - 2ab
• (a + b)³ = a³ + b³ + 3ab(a + b)
• (a - b)³ = a³ - b³ - 3ab(a - b)
• a³ + b³ = (a + b)(a² - ab + b²)
• a³ - b³ = (a - b)(a² + ab + b²)