Question

(√2 − 2)²

what is the answer?​

Answer 1

Answer:

identity (a-b)²= a²+b²+2ab

Step-by-step explanation:

(√2 − 2)²

2+4-2×2×√2

2+4-4√2= 6-4√2

Answer 2

Answer:

using algebraic identity

(a-b)^2

a^2-2ab+b^2

(√2)^2-2(√2)(2)+(2)^2

2-2(√2)(2)+4

6- 2(2√2) is the correct answer