dessiiwessii19
dessiiwessii19 dessiiwessii19
  • 12-04-2017
  • Mathematics
contestada

Factor x^3-5x^2-3x+15

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irspow
irspow irspow
  • 12-04-2017
rearrange slightly like so...

x^3-3x-5x^2+15  now factor first and second pair of terms...

x(x^2-3)-5(x^2-3)

(x-5)(x^2-3)

(x-5)(x-√3)(x+√3)
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