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Trigonometry Help? Please? Anyone?



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Tue Sep 13, 2011 11:01 pm
Jas says...



So I've got pretty simple stuff for homework that four months ago I could have done in a heartbeat. But now my brain is all fuzzy and I needs help. The sad thing is that this isn't even Trig. We're just reviewing Algebra from last year. :[

(x^a + y^b) (x^a - y^b)

Mahh. Do I make the x^a * x^a into x^2a or x^a^2 which I'm not sure is allowed. I mean, an exponent on an exponent? No.


But er, yeah. If you have ANY idea what I should do in this dilemma, please help me. Thanks! BAI.
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or maybe like pocket candy
that's just a bit too sweet.

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Thu Sep 15, 2011 3:19 am
Kale says...



Keep in mind that when you multiply variables with exponents, you add the exponents together. a + a = 2a, so your answer would be x^2a.

And you can have exponents on exponents, but that's nasty math stuff that comes in way later on. XD
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336 Reviews


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Thu Sep 15, 2011 10:10 pm
Jas says...



Thanks. :] My math teacher explained it like yesterday, but thanks anyway!
I am nothing
but a mouthful of 'sorry's, half-hearted
apologies that roll of my tongue, smoothquick, like 'r's
or maybe like pocket candy
that's just a bit too sweet.

~*~
  








It had a perfectly round door like a porthole, painted green, with a shiny yellow brass knob in the exact middle. The door opened on to a tube-shaped hall like a tunnel: a very comfortable tunnel without smoke, with panelled walls, and floors tiled and carpeted, provided with polished chairs, and lots and lots of pegs for hats and coats—the hobbit was fond of visitors. The tunnel wound on and on, going fairly but not quite straight into the side of the hill —The Hill, as all the people for many miles round called it—and many little round doors opened out of it, first on one side and then on another.
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