indy500fan Posted January 22, 2008 Share Posted January 22, 2008 Indy, your solution is incorrect, you can't cancel the y's like that in the first step. They're not multiplicative. I'll post mine up in a minute once i've typed it out. Fairly self explanatory. Yes you can. And we got the same answer, so it is right. (y^2-y)/y can be simplified to (y-1)/1, like I have. Link to comment Share on other sites More sharing options...
Elfio Posted January 22, 2008 Share Posted January 22, 2008 [hide][hide] This is really not a hard problem. I shouldn't have to explain this to anyone who has taken algebra before. People don't seem to get it though, so I separated it into 6 steps and will explain anything that you think is wrong. [/hide] Indy, your solution is incorrect, you can't cancel the y's like that in the first step. They're not multiplicative. I'll post mine up in a minute once i've typed it out. Fairly self explanatory.[/hide] Assassin, your answer is the same as Indy's; however, your answer is expressed in a different way. If you split the numerator and cancel the x's, you will get the exact same answer. Both of you are correct. You both just did it in slightly different steps. Indy's first step is algebraically acceptable. He factored a y out of the numerator and denominator of the left fraction. This left a y/y which cancels out (y/y = 1). Edit: Indy beat me to it. Link to comment Share on other sites More sharing options...
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