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5467brodie 5467brodie
  • 14-11-2016
  • Mathematics
Answered

factor completely please x^3+27

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andrewsip andrewsip
  • 14-11-2016

You can use the SOAP acronym to figure out the sign. (a^3+b^3)=(a+b)(a^2-ab+b^2). The signs are Same, then Opposite, and then Always a Plus. So it would factor to (x+3)(x^2-3x+9)

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TheBlueFox
TheBlueFox TheBlueFox
  • 18-12-2019

Work is provided in the image attached.

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