natebovellp7cufo natebovellp7cufo
  • 18-04-2018
  • Mathematics
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factor: x^2 - 81
[tex] {x}^{2} - 81[/tex]

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ktreyb
ktreyb ktreyb
  • 18-04-2018
(x - 9)(x + 9) is your answer. This is called a difference of two squares. 
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