Answers

2015-10-13T11:57:26+08:00
  • Brainly User
2015-10-13T14:33:05+08:00
A = 2;  b = -7;   c = -1

x= \frac{-b+or-  \sqrt{b ^{2}-4ac } }{2a}

The solution:

  x_{1} =  \frac{7+ \sqrt{57} }{4}  
    
                       and

 x_{2} = \frac{7- \sqrt{57} }{4}

Please see attached solution :-)
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