Math Help PLZ

N

N-John360

Member
Ok this is quite a bit I prolly even put it into 2 dif. posts. This is a test, so try and make sure you get it right.

4/(x-1)-2/(x+3)

x/(x^2+6x+9) + 3/(x^2-9)

5/(y-3) - 7/(3-y)

x/(x+2) - 5x/(x^2-4)

If you help me I will give you a hug...Seriously though, I convinced my teacher to let the test be taken home, and this is the last one, so I need a good grade...and if you help me with all of them (still got like 4 more after this) I might send u money

 
if it were homework i'd show you the answers and how to get the answer, but since your lazy ass is trying to get us to give you test answers fuck that.
 
Factor first, than I guess you can delete some. Or find the LCD. Somethign like that. EVen if someone just tell me how to do it, I be happy.
 
no problem, as for the third one then:

12 / (y-3)

i believe... i dont have all my brain with me right now but ill try to do em all
 
well i wish i could explain but im not really good with english and all the terms i know are in french, so ill try but fuck it if you dont understand:

what you have to do with a adition or substraction of 2 or more terms is to put both terms with the same denominator. to do so, you multiply each term by 1, but you change the 1 with the denominator of the other term, so for instance you have 1/(x+1) + 1/(x) youll have to multiply the first term by x/x and the second one by (x+1)/(x+1) then you factor and develop i guess...

last one's answer is , i think:

x(x+7) / (x+2)(x-2)

or if you develop the denominator:

x(x+7) / (x^2-4)

 
haha well i guess that if i ever wanted some math help and came on NS, then i'd appreciate if, among all the "searhc bar nooobz" and "ahh im lazy" there might be someone helpful enough to help me. and in that case im that dude.

oh and i also like maths, and its pretty easy for me.

Glad i've helped.
 
Are you answering your own question? Cause if your asking me, I'm 17, a junior, and I actually get good grades. Even got a 1750 on my SATs, which is somewhere around the 70% percentile. So, its actually not that low level.
 
For some reason I just took the time to do those over again. So I can confirm, positively, that all of Splounkalis answers were correct.
 
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