CatRaudafluford CatRaudafluford
  • 26-10-2016
  • Mathematics
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solve x^2 - 8x - 20 = 0. x = 4, x = -5 x = -4, x = 5 x = 2, x = -10 x = -2, x = 10

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Аноним Аноним
  • 26-10-2016
I hope this helps you




x.x-8.x-10.2=0



(x-10). (x+2)=0


x-10=0 x=10


x+2=0 x= -2
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