patreanavivid500
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  • 27-06-2018
  • Mathematics
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what are the solutions of x^2=19x +1

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Аноним Аноним
  • 27-06-2018
X2=19x+1
x2- 19x-1=0 
D=b2-4ac =(19)^2 -4*1*(-1) =365
x1,2=  -b+√D over 2A
x1= 19-√365 over 2 
X2 = 19+ √ 365 over 2

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