how to factor a high degree polynomial

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how to factor problems such as f(x)-2x^4+12x^3-18x^2-108x

I can never factor it out more than to ^3

Aug 26th, 2015

Thank you for the opportunity to help you with your question!

2x^4+12x^3-18x^2-108x

=2x(x^3+6x^2-9x-54)

=2x(x^2(x+6)-9(x+6))

=2x(x+6)(x^2-9)

=2x(x+6)(x-3) (x+3)



Please let me know if you need any clarification. I'm always happy to answer your questions.
Aug 26th, 2015

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Aug 26th, 2015
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