Sunday, January 11, 2015

Solve: 3 = x-2√x


u=sqrt%28x%29

u%5E2-2u-3=0

%28u-3%29%28u%2B1%29
leads to
u=3 or u=-1
but only u=3 is viable and it leads to

x=9
Posted by at
Labels: , ,

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)