Yes, that is more likely to be the problem. Review what has posted up above to get that answer.

]]>but thank you (: i will save this thread and review the problem assuming it was a2 and try work it out using your working (:

thanks thanks thanks

]]>But you will then notice that the book problem must be a typo. But if it is not then the answer is

]]>im sure its a typo because the 2 is after the a which does not conform with previous exercises.

i spent 2 hours on this :*( 2 hours 20 minutes

thanks all for help and very sorry for wasting everyones time.

]]>HDT wrote:

]]>Our life is frittered away by detail. Simplify, simplify, simplify! I say, let your affairs be as two or three, and not a hundred or a thousand; instead of a million count half a dozen, and keep your accounts on your thumb-nail.

Bob

]]>Bob

]]>Hmmm, that is probably true.

Latexify, latexify, latexify. Our lives are frittered away by ascii, latexify!

Is that a2 really

?

Bob

]]>No, I was starting from the beginning.

Now you multiply top and bottom of that by a2.

]]>multiply both by a?

]]>There are probably a couple of ways to get there:

1) Multiply top and bottom by a.

1) Multiply top and bottom by a2.

]]>I can do most of these but cant get past this one for some reason.

=

but i get stuck here S: is this totally wrong?

with the other problems i was able to factor them then cancel out. But this one i keep getting to this point and get confused

]]>