A couple of algebra problems...
Hi, I'm new to the board.
I had a big ol' heaping pile of algebra homework to do recently, and I'm happy to say that I've actually figured most of it out, save for these four problems. It's really just two basic ideas that I don't understand, as the problems come in pairs.
For the first pair, I'm just asked to simplify:
a^22ab+b^2
______________
ab
and...
a^22ab+b^2
______________
a+b
I've been trying to solve these using polynomial long division, but I don't think I'm doing the descendingpower reordering right or something.
The second pair are just addition and subtraction problems, but I'm stumped. :p
a1
____
a+1
+
a+1
____
a1
and
4
____
a5

1
____
5a
If someone can help me understand how to solve these problems, I'd appreciate it.