Question

find the value of (5-√5)²​

Answer 1

Answer:

Step-by-step explanation:

(5-√5)²​

Using identity (a-b)^2 = a^2 +b^2-2ab

So, (5^2)+(√5^2)-(2×5×√5)

25+5-10√5 = 30-√5

Hope it helps you .,......

Answer 2

Answer:

Step-by-step explanation:

(5-15)2

Using identity (a-b)^2 = a^2+b^2-2ab

So, (5^2)+(5^2)-(2x5x√5)

25+5-10 v5 = 30-v5.

Hope it helps you......