I have several problems here dealing with the standard part of numbers in my Calc for Bio class that im unsure of how to deal with.

Find the standard part of:

1.) (H+1)^3 - H^3 / H^2 - 3H

where H is an infinite number

2.) (3^H + 1) ^2 / 3^2H

Ive tried manipulating the equation in various ways an always seem to get a 0/x or x/0 when there shouldnt be a 0 in the numerator or denominator. Theres also basically no help to be found on the net. Help would be appreciated. Thanks