Help w/ 2 simple algebra questions please!

[Utah]

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I just think it's really difficult to write algebra related things with a standard keyboard.

I could just see right away what the statement probably was saying based on 20+ years of teaching factoring and rational expressions.

[/ QUOTE ]lmao. Well, the last time I tried a problem like this was 1988 so my spotting skills are a bit rusty [img]/images/graemlins/smile.gif[/img]

[jogsxyz]

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Simplify.
9/y² - 1 / 1+3/y

Thank You



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Is it this

(9/y² - 1) / ( 1+3/y) or

something else?

Assume it's the expression above.

(9/y² - 1) = (3/y - 1) (3/y + 1)

That's from (x²-1) = (x-1)(x+1)


The two (3/y + 1)s factor out.

Therefore expression two is

(3/y -1)