IamtheMath IamtheMath
  • 22-10-2021
  • Mathematics
contestada

Factor [tex]x^{4} -8x^{2} -9[/tex]

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  • 22-10-2021

Answer:

[tex](x^2+1)(x-3)(x+3)[/tex]

Step-by-step explanation:

x^2^2 - 9x^2 + 1x^2 - 9

= x^2(x^2 - 9) + 1(x^2 - 9)

= (x^2 + 1)(x^2 - 9)

= (x^2 + 1)(x-3)(x+3) <- (This is due to the a^2-b^2 theorem)

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