Question

expand using (a+b)^2
(√2 +1)^2​

Answer 1

Answer:

3+2√2

Step-by-step explanation:

(a+b)^2 = a^2 + b^2 + 2.a.b

PUTTING AS SUCH WE GET( a= √2 , b= 1)

(√2)^2 + (1)^2 + 2 . √2 . 1

= 2 + 1 + 2√2

= 3 + 2√2