Well i couldn't go to school today for various reasons.
So i'm trying to teach myself some stuff and am having trouble understanding the method.
The method goes like this :Quote:
Find a differential equation satisfied by y = Ax^2 + Bx^0.5 for ALL values of A and B
Ok, i get that :) and i also get you can use elimination to then solve this...but i don't get what they've done...
By eliminating B from the first and second equation...they get
This is where im confused...where the hell do they even get
Note: Its meant to be x to the power of a half...but latex doesnt like it lol.