SOLUTION: (3+square root of 5)squared=(3+square root 5)(3+square root 5) =3^2+3 square root 5+3 square root 5+(square root 5)^2 =9+6 sq

Algebra ->  Square-cubic-other-roots -> SOLUTION: (3+square root of 5)squared=(3+square root 5)(3+square root 5) =3^2+3 square root 5+3 square root 5+(square root 5)^2 =9+6 sq      Log On


   

Question 136423: (3+square root of 5)squared=(3+square root 5)(3+square root 5)
=3^2+3 square root 5+3 square root 5+(square root 5)^2
=9+6 square root 5+5
=15+6 square root 5
Answer by tns_tutor5000(9) About Me  (Show Source):