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how to solve quadratic equation

Would you help me solve this quadratic equation
 
 
                       ___________________
          -9.7  - √ 9.7^2 + 4(24.61)(16)
 
 
 
thanks
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2 Answers

See the previous question's solution.
Use the form of the quadratdic equation and it's solution equation for s to find a, b, c.
-9.7 - [(9.7)2 + 4(24.61)(16)]1/2 = = -9.7 - (1669.13)1/2 = -9.7 - 40.9 = -50.6