Question

if a= 3+2√2 then find value of a power 3 + 1\a power 3​

Answer 1

Step-by-step explanation:

x=3+22   x1=3+221×3−223−22

=3−22

(x−21)2=x+x1−2

=3+22+3−22−2=4

So, x−x1=4=±12 Ans