Brigitte22 Brigitte22
  • 19-05-2016
  • Mathematics
contestada

Solve this equation using an algebraic method.

Solve this equation using an algebraic method class=

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Tareki
Tareki Tareki
  • 19-05-2016
(x+4) (x-4) = 9 
(x^2 - 16) = 9
x^2 = 25 
x=5 & x = -5 
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