SOLUTION: Please show me how to solve this quadratic equation step by step 2x^2+5x-1=0. Any help will be greatly appreciated. Thanks

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Please show me how to solve this quadratic equation step by step 2x^2+5x-1=0. Any help will be greatly appreciated. Thanks      Log On


   

Question 23278: Please show me how to solve this quadratic equation step by step 2x^2+5x-1=0. Any help will be greatly appreciated.
Thanks
Answer by dkspoet(13) About Me  (Show Source):
You can put this solution on YOUR website!
2x^2+5x-1=0
x^2+(5/2)x-1/2=0
x^2+2(5/4)x+(5/4)^2-(5/4)^2-1/2=0
(x+5/4)^2-25/16-8/16=0
(x+5/4)^2=33/16
x+5/4=± sqrt(33)/4
x=-5/4 ± sqrt(33)/4