integration factor(20p)

Question: http://wongju13.wix.com/chan

a) Use integration factor method to find particular solution of the differential
equation

x(dy/dx) - 2y = x^4 e^x^2
That satisfies the initial conition y(1) = 0. Expres your answer in the explict form
y(x).


b) Use sparation of variable method to find particular solution of the differential
equation

dy/dx = 2y/(x^2-1) (x>2)

that satisfies the initial condition y(2) = 1. Express your nswer in the explicit form
y(x).