Question

Find the product of (2 + √2) and (2 – √2).

Answer 1

Answer:

= (2+√2)*(2-√2)

= 2(2-√2)+√2(2-√2)

= 4-2√2+2√2-√4

= 4-√4

Answer 2

Answer:

2

Step-by-step explanation:

(a+b)(a-b) =a2-b2

by using this property we can solve it easily

(2+√2)(2-√2)

2^2-√2^2

4-2=2