Question 483375
I need help solving this radical so no radicals are in the denominator. 8 / 2- sqrt 2


{{{8/(2 - sqrt(2))}}}


Multiply numerator and denominator by {{{(2 + sqrt(2))}}} 


This gives us: {{{(8*(2 + sqrt(2)))/((2 - sqrt(2))*(2 + sqrt(2)))}}} ----- {{{(8*(2 + sqrt(2)))/(4 - sqrt(2)*sqrt(2))}}} ------ {{{(8*(2 + sqrt(2)))/(4 - 2)}}} ---- {{{(8*(2 + sqrt(2)))/(2)}}} ------ {{{(4cross(8)*(2 + sqrt(2)))/cross((2))}}} ----- {{{highlight_green(4(2 + sqrt(2)))}}} or {{{highlight_green(8 + 4sqrt(2))}}}