<t>Thanks, however I am solving this problem where I havedXo = r dtdx1 = adt + c dbt and X1(0) = x1Here I am wondering how to price the American put and call option .Coming back on the differential equation.How do we solve the following de?a p"(x) + bxp'(x) +cp(x) = 0?Thanks. Just need to solve this...