- #1
Grove1996
- 15
- 0
Homework Statement
Hey
I have a question that I have to do that involves expanding a cubic. It is given in the form y = , once it is found I have to square it and then substitute it into a formula to find the area. All I need help with is the expansion than after that it's quite easy.
Homework Equations
Sorry I don't know how to use the options here to create formulas etc. But I hope the following link works.
https://www.physicsforums.com/attachment.php?attachmentid=58828&stc=1&d=1368927170
This is the equation that I need to expand.
The Attempt at a Solution
I know how to expand a cubic already, it's not that difficult. The problem is with the +2 at the end of the equation. Do I ignore it, expand the brackets and add it on at the end?