Need Math Help, Please!



12022013, 07:26 PM




Need Math Help, Please!
Okay, I've heard people say they are willing to help with math, so I am here to take you up on your offer. I'm working on polynomials, something I've did before, but I'm a bit rusty. So I was doing okay, until I got to this problem, and I cannot understand why it is being marked as wrong. The computer tells me "Although your answer is equal to the correct answer it is in the wrong form." though it doesn't provide any instruction as to what form it wants. In any case, after getting it wrong three times it was marked as wrong and it provided me with the correct response. Only thing is, I do not even understand how the correct answer is equal my to answer. Here is the problem:
(11r^2s+15rs45r^2s^2)(3sr^2+77r^2s^2) I took the reciprocal of the terms, did my calculations and wound up with 11r^2s+15rs11+2r^2s^23sr^2 The answer it wanted was 8r^2s+15rs11+2r^2s^2 From observation it would seem that it wanted me to subtract 3sr^2 from 11r^2s, but those aren't like terms are they? since when does sr^2 = r^2s? Can someone please clarify? If this is indeed the case can someone please explain how or why these are like terms so I can recognize it in future problems? Thanks in advance! 



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Messages In This Thread 
Need Math Help, Please!  Dark Light  12022013 07:26 PM
RE: Need Math Help, Please!  nach_in  12022013, 07:40 PM
RE: Need Math Help, Please!  Anjele  12022013, 07:45 PM
RE: Need Math Help, Please!  Dark Light  12022013, 07:51 PM
RE: Need Math Help, Please!  nach_in  12022013, 08:01 PM
RE: Need Math Help, Please!  Dark Light  12022013, 08:11 PM
RE: Need Math Help, Please!  nach_in  12022013, 08:17 PM
RE: Need Math Help, Please!  Dark Light  12022013, 08:57 PM
RE: Need Math Help, Please!  nach_in  12022013, 10:23 PM
RE: Need Math Help, Please!  kpax  12022013, 11:24 PM
RE: Need Math Help, Please!  Carlo_The_Bugsmasher_Driver  13022013, 12:33 AM
RE: Need Math Help, Please!  Bucky Ball  17102013, 11:27 AM

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