joseloredo joseloredo

03-02-2017
Mathematics

contestada

correctly complete the square for the equation below

x^2 + 18x = 0

Respuesta :

littlejohn18 littlejohn18

03-02-2017

x^2 + 18x = 0
(x^2 + 18x + 81) = 0
(x + 9)^2 = 81
x + 9 = +/-squareroot81
x = 0, and -18

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