Question

if X equals to 3 + 2 root 2 then find x square plus one upon x square​

Answer 1

one step is missing

but u can understand how to do

Answer 2

Step-by-step explanation:

if

x = 3 + 2√2

=> x = 2√2 +3

=> x^2 + 1 = (2√2 +3 )^2 + 1 [ both side square

plus one]

=> x^2 = (2√2)^2 + 2 . 2√2 .3 + 3^2

=> x^2 = 8 + 12√2 + 9

=> x^2 = 17 + 12√2

there fore,

x = 2√2 + 3

and. x^2 = 17 + 12 √ 2

I hope you will like my answer and mark as brainlist please