var('y,b,c')
y=x*x*x
b=diff(y,x,2)-2*diff(y,x)+5*y
c=5*x*x*x-6*x*x+6*x
bool(b == c)

Kreyszig-2.8.4-U (last edited 2010-12-17 12:53:07 by YASHWANTH)