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#2 2012-11-28 22:41:01
- bob bundy
- Moderator
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Re: factoring polynomials
hi deiv
Welcome to the forum.
You can simplify the problem by making the substitution
Then it becomes
I notice that x = -1 makes this expression zero, so by the factor theorem (x + 1) is a factor.
From there you can easily get the quadratic that goes with this and you'll find the formula will give another two factors.
Then you can go back to the m expression from there.
Bob
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
#3 2012-11-28 23:19:05
- bobbym
- Administrator
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Re: factoring polynomials
Hi;
Or take it over to Wolfram.
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#4 2012-11-28 23:34:45
- deiv
- Guest
Re: factoring polynomials
How about this one? What are the factors of:
3x(x+2y) + 4y(3x+2y)
#6 2012-11-29 00:30:59
- bobbym
- Administrator
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Re: factoring polynomials
I think you are going to find that is irreducible in Q and therefore in Z.
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.