Expert: Bobby Soltani - 8/2/2005

Question
Simplify by adding like terms
5-x+xy-3yx-2+2x
5-x+xy-3yx-2+2x
5-2-x+2x+xy
3+x-2xy
-----------------------
-3bpx-3bp-3+5pb
-3bp+5pb-3bp-3bpx
2-3bx-3bpx
-1-3=-4
------------------
7-3k-2k+2kx-xk+8
15-5k+kx
----------------------
-8-py+2yp+4-y
-8+4+2yp-1py-y
-4+2yp-1py-y
-2yp-py-

Answer
Hi Benita,

You have to collect the terms and not skip any steps.  I think the 1st and 3rd problem is fully correct.

In the second problem,

-3bpx - 3bp - 3 + 5pb
-3bpx + bp(-3 + 5) - 3
=-3bpx + 2bp - 3

4th problem
-8 - py + 2yp + 4 - y
(-8 + 4) + yp(-1 + 2) - y
-4 + yp - y

Let me know if you have any questions.

Bobby