Question

find the value of (5-√2)²​

Answer 1

Step-by-step explanation:

5²+2-root2×5

25+2-root10

27-root10

Answer 2

Step-by-step explanation:

• Use formula

• (a - b) ² = a² - 2ab + b²

Here

• a = 5
• b = √2

→ (5 - √2) ² = (5) ² - 2*5*√2 + (√2) ²

• 25 - 10√2 + 2
• 27 - 10√2
• OR
• 17√2