# PDE problem

1. Jan 8, 2009

### pentazoid

1. The problem statement, all variables and given/known data

which solutions of du/dt+du/dx=0 is equal to xe-x2
2. Relevant equations

3. The attempt at a solution

u(x,0) = xe-x2
u(x,t)= (x-t)e(-x-t)2

what else do i need to do?

2. Jan 8, 2009

### the1ceman

One way of solving a pde like that is to always try seperation of variables , so that you assume$$u(x,t)=X(x)T(t)$$where X is just a function of x and T just a function of t, plug this into your pde and see what u get!!!