sammy0619
sammy0619 sammy0619
  • 24-04-2017
  • Mathematics
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2
Solve x +10x= 39 by completing the square.

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Аноним Аноним
  • 27-04-2017
(x + 5)^2 - 25 = 39
(x+5)^2 =  64

(x + 5)   =+/- sqrt64  = +/- 8

x =  3,    -13
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