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#1 2006-10-07 09:11:44

unique
Member
Registered: 2006-10-04
Posts: 419

simplify

( 3x^(5/2) - 7y(7/2) ) ( 3x(5/2) + 7y(7/2) )

HELPdunno


Desi
Raat Key Rani !

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#2 2006-10-07 09:29:23

polylog
Member
Registered: 2006-09-28
Posts: 162

Re: simplify

If you mean:

Then what you need to do is expand it out and use the laws of exponents:

It might be possible to simplify this more but I can't think of how at the moment. smile

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#3 2006-10-07 09:40:33

unique
Member
Registered: 2006-10-04
Posts: 419

Re: simplify

Oh god thank you so much.
i have been stuck on this problem for almost 2 days..
heheh smile
yeah i'll see if its possible to simplify it more
thanks


Desi
Raat Key Rani !

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#4 2006-10-07 09:56:38

polylog
Member
Registered: 2006-09-28
Posts: 162

Re: simplify

You're welcome. smile

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#5 2006-10-07 10:20:55

Ricky
Moderator
Registered: 2005-12-04
Posts: 3,791

Re: simplify

A polynomial with no common factors in the coefficents, no duplicate variables (i.e. an x in more than one place).  So nope, you can't simplify it more.


"In the real world, this would be a problem.  But in mathematics, we can just define a place where this problem doesn't exist.  So we'll go ahead and do that now..."

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#6 2006-10-07 10:25:13

polylog
Member
Registered: 2006-09-28
Posts: 162

Re: simplify

Thanks, I was worried that maybe because the coefficients are perfect squares, there is some clever difference-of-squares-like factorization possible. smile

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