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Old 07-05-2007, 12:12 AM   #11
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Default Re: small math problem

When there is no greatest common factor, yes.
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Old 07-05-2007, 12:23 AM   #12
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Default Re: small math problem

i just took a factoring class in college for a math requirement. Ill do the problem and see what i get, then take a pic of it.
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Old 07-05-2007, 01:01 AM   #13
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Default Re: small math problem

ok thanks
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Old 07-05-2007, 01:09 AM   #14
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Default Re: small math problem

There's a whole class on factoring???

Anyway...
from the original problem it's a trinomial square, so that factors to (a^2-1)(a^2-1) hence a^4 - a^2 - a^2 + 1. Remember FOIL.
Those two are a difference of squares so you get (a+1)(a-1)(a+1)(a-1)

Pretty easy once you get used to it.
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Old 07-05-2007, 01:16 AM   #15
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Default Re: small math problem

ok thanks guys i have a test tomorrow and i didnt quite get this problem so that why im asking.
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Old 07-05-2007, 05:58 PM   #16
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Default Re: small math problem

Good luck on your test!
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Old 07-05-2007, 11:29 PM   #17
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Default Re: small math problem

yay i got a 92% on my test i got 2 problems wrong though
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Old 07-06-2007, 01:35 AM   #18
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Default Re: small math problem

Quote:
Originally Posted by D-Lew View Post
There's a whole class on factoring???

Anyway...
from the original problem it's a trinomial square, so that factors to (a^2-1)(a^2-1) hence a^4 - a^2 - a^2 + 1. Remember FOIL.
Those two are a difference of squares so you get (a+1)(a-1)(a+1)(a-1)

Pretty easy once you get used to it.
Yes i tested into college algebra and we spent 2-3 week on all kinds of factoring problems.(sum of cubes, differences of square, sum of squares of 2 consecutive integers, Quadratic Equations, Binomials and trinomials, few other don't remember all of them )Also sorry i did not post the answer to the problem, but the correct way is what D-lew has posted. Nice job on the math test btw.
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