Question

Find the value of (1+√2)^2​

Answer 1

Step-by-step explanation:

(1+√2)^2=1+2root2+2

Answer 2

Answer:3+2root2

Step-by-step explanation:

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

(1+root2)^2=1^2+(root2)^2+2×1×root2

=1+2+2root2

=3+2root2