.I have two multiple choice homework problems that I can't get. I've linked the scanned problems below. These are due tomorrow morning and I am stumped. Can someone please help? Thanks!

Problem 1.

http://i13.photobucket.com/albums/a2...g?t=1257212983

But

Thus:

The correct option seems to be (B) but I can't distinguish the minus in the power of 4x...

Tonio

Ps. One problem each time

Problem 2.

http://i13.

photobucket.com/albums/a284/chris_lisauckis/Misc/img154.jpg?t=1257213228