not sure what this is called...

C

collegekid87

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Joined
Aug 24, 2005
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im not sure what type of problem this is, it was on my college placement test (i failed and am plannign on retaking in a couple of days) and would like some help on how to solve it/what it is called. this is not the exact question, im not even sure ifthis one is solvable.

3x-2
1
x-y
please help me.

heres a variation of it that i'm not sure how to do it either.
r^2 - sr + 6
r^2 - 4
and please, tell me what these problems r called so i can look up tutorials or something on them
 
collegekid87 said:
im not sure what type of problem this is, it was on my college placement test (i failed and am plannign on retaking in a couple of days) and would like some help on how to solve it/what it is called. this is not the exact question, im not even sure ifthis one is solvable.
3x-2
1
x-y
please help me.
Click to expand...

Well, looks like (3x - 2) divided by all of [1 / (x - y)]
So, same as a / (b/c) = ac / b (multiply after INVERTING bottom fraction):

(3x - 2) / [1 / (x - y)]
= (3x - 2) * [(x - y) / 1]
= (3x - 2) * (x - y)

Can you finish it now?
 
umm is the answer 3x^2 - 3xy - 2y - 2x?
and please, what are these problems called? i want to look some information up on them that might help me remember how to do them. im really dumb when it comes to math lol
 
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