31-03-2016
Mathematics

contestada

Solve the following equation by completing the square.

x² + 8x – 9 = 0

Respuesta :

garydesir1 garydesir1

31-03-2016

Factor left sides of the equation

(x-1)(x+9) = 0

Set factor equal to 0

x-1 = 0 or x+9 = 0

x= 1 or x= -9

I hope that's help and have sweet dream !

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