What is the value of y?
My choice was A..
I did this way can any one correct me if im wrong??
(2) INSUFFICIENT : y^2-y=0 y(y-1)
(1) i felt this is SUFFICIENT: y^3+2y=y+2y^2
divide by y on both sides y^2+2=1+2y y^2-2y+1=0 (y-1)^2=0
So solution will be y=1
Is there any mistakes in my calculation?
If y this soln is wrong???
GMAT - Practice, Patience, Persistence
Kudos if u like