urobbie says B and D...and once again, he's right for 125,000 GP bucks!

Now I hope to God I can type this math equation here so it's readable. It is put into words; I hope you can translate it into numerals.

The property to simplify the equation below is:

The quantity (the number of (x squared plus x) over x, minus x; that plus x squared) times (the quantity: two plus nine thousand seven hundred eighty four to the power of (y minus z minus the number y minus z,) minus two times yz raised to the "x minus x" power; minus x to the power of (the cosine of 90 degrees times xyz plus the square root of eight hundred forty one minus three cubed.)) It simplifies to 1 minus x to the fourth. Remember, all this is written in algebraic formula. With that, the answers are:

A. difference of cubes
B. difference of squares
C. sum of cubes
D. sum of squares

If you don't have a clue in hell what this is all about, blame my psychotic brother. He's the one that wrote the problem.
Is that your final answer?