Question 1128590
a.


{{{x^2= (sqrt(3+2sqrt(2)) + sqrt(3-2sqrt(2)))^2}}}


{{{x^2= (sqrt(3+2sqrt(2)))^2 + 2*sqrt(3+2sqrt2) *sqrt(3-2sqrt(2))+ (sqrt(3-2sqrt(2)))^2}}}


{{{x^2= 3+2sqrt(2) + 2*sqrt((3+2sqrt(2))(3-2sqrt(2)))+3-2sqrt(2)}}}


{{{x^2= 3+cross(2sqrt(2)) + 2*sqrt(3^2-(2sqrt(2))^2)+3-cross(2sqrt(2))}}}


{{{x^2= 6 + 2*sqrt(3^2-4*2)}}}


{{{x^2= 6 + 2*sqrt(9-8)}}}


{{{x^2= 6 + 2*sqrt(1)}}}


{{{x^2= 6 + 2}}}

{{{x^2= 8}}}


b.


{{{x^2= 8}}}

{{{x= sqrt(8)}}}

{{{x= sqrt(2^2*2)}}}

{{{x= 2sqrt(2)}}}