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 #1
avatar+26007 
0

x+y = -15   y = -15-x

 

xy=-34

x((-15-x) = -34

-x^2 -15x + 34 = 0

x^2 +15x -34 = 0

 

(x-2)(x+17) = 0          x = 2 and -17

 Jan 25, 2019

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