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how to solve 2x^2-7x-1=0 using quadratic formula

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Alphabetagammaviz
Solutions on the document. :)
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a = 2;  b = -7;   c = -1

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

The solution:

[tex] x_{1} = \frac{7+ \sqrt{57} }{4} [/tex]  
    
                       and

[tex] x_{2} = \frac{7- \sqrt{57} }{4} [/tex]

Please see attached solution :-)
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