Question 94825
{{{2(x/y)y^2}}} Start with the given expression


{{{2(x/y)y*y}}} Rewrite {{{y^2}}} as y  



{{{2(x/cross(y))y*cross(y)}}} Cancel like terms



{{{2xy}}} Simplify


{{{2(10)}}} Plug in {{{xy=10}}}


{{{20}}} Multiply



So {{{2(x/y)y^2=20}}} if {{{xy=10}}}