Yisell Yisell
  • 09-06-2016
  • Mathematics
contestada

What is the factored form of x^3-1?

Respuesta :

johnsonm3
johnsonm3 johnsonm3
  • 09-06-2016
the answer is (x-1)(x^2+x+1)
Answer Link
DodieZollner DodieZollner
  • 24-12-2018

Answer:

[tex](x-1)(x-(\frac{-1-i\sqrt{3}}{2}))(x+(\frac{-1+i\sqrt{3}}{2}))[/tex]

Step-by-step explanation:

Given equation : [tex]f(x)=x^3-1[/tex]

To write it's factored form :

⇒ [tex]x^3-1=0[/tex]

⇒[tex](x-1)(x^2+x+1)[/tex]

⇒[tex](x-1)(x-(\frac{-1-i\sqrt{3}}{2}))(x+(\frac{-1+i\sqrt{3}}{2}))[/tex]

⇒[tex] x=1,x=\frac{-1-i\sqrt{3}}{2}),x=\frac{-1+i\sqrt{3}}{2}[/tex]

⇒[tex] x=1,\frac{-1-i\sqrt{3}}{2},\frac{-1+i\sqrt{3}}{2}[/tex]

Answer Link

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