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michael_Stone michael_Stone
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11 years ago
I need to know for homework. For example, what about this problem:

x^3 - 4x^2 + 6x - 4

That specific problem is not one I have to do, but it's similar. I am having an extremely hard time trying to understand how to do it, and it doesn't help that I struggle at factoring. Please try to be as specific as possible helping me.
Is there any way to determine one of the roots besides guessing and checking?
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#1
11 years ago
first put some values for x.. like put x=1
(1-4+6-4) is not zero.  So x=1 is not a root.

then put x=2
(8-16+12-4) is zero.  Therefore x=2 is a root for the above equation.

do the division of the above equation by (x-2) then you'll get quadratic equation.  

I guess you know how to solve quadratic equation.  All the best. Slight Smile
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iLearninPhysiLearninPhys
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11 years ago
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