+234 [(root2)+(root1/2)]^2 apparently = 4.5???
the square cancels out with the roots so
it should be (2+1/2) = 3/2
weeeeird
im some helps me ill give 5 stars
+37146 Nothing cancels out
(sqrt2 + sqrt1/2)^2 =
2 + 2 sqrt2 sqrt1/2 + 1/2
2.5 + 2(sqrt(2 x 1/2)
2.5 + 2 sqrt 1
2.5 + 2 = 4.5
+118667 5 stars .. how can I say not to that :))
\([(\sqrt2)+\sqrt{1/2}]^2\\ =\left[\sqrt2+\frac{1}{\sqrt{2}}\right]^2\\ =\left[\sqrt2+\frac{1}{\sqrt{2}}\right]\left[\sqrt2+\frac{1}{\sqrt{2}}\right]\\ =(\sqrt2)^2\;\;+\;\;2*\sqrt2*\frac{1}{\sqrt{2}}\;\;+\;\;(\frac{1}{\sqrt2})^2\\ =2\;\;+\;\;2\;\;+\;\;\frac{1}{2}\\ =4\frac{1}{2} \)
I would have done it for free 
