Brigitte22 Brigitte22

19-05-2016
Mathematics

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Solve this equation using an algebraic method.

Solve this equation using an algebraic method class=

Respuesta :

19-05-2016

(x+4) (x-4) = 9
(x^2 - 16) = 9
x^2 = 25
x=5 & x = -5

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