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#1 2006-11-14 23:07:38

Toast
Real Member
Registered: 2006-10-08
Posts: 1,321

Rational Expression






Correct?

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#2 2006-11-14 23:22:02

Dross
Member
Registered: 2006-08-24
Posts: 325

Re: Rational Expression

Toast wrote:


This step is wrong - you seem to have put a minus sign at the front for absolutely no reason...???

(I see at the same stage you've also swapped around the order of (x-2) and (x+2) in the denominator - this, however, does not force a minus sign to appear!)

Also, the 2(x+2)(x-2) in the last two lines should be x(x+2)(x-2).


Bad speling makes me [sic]

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#3 2006-11-15 00:21:13

Toast
Real Member
Registered: 2006-10-08
Posts: 1,321

Re: Rational Expression

I put the minus sign there so that one of the brackets in the denominator would be reversed from 2-x to x-2, so it would match up with the other fraction.
And lol, yeah that was a typo in the last few lines

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