SOLUTION: 0=xx(squared)-50x+175 ????? I tried to use the quadratic formula, but it became a imaginary number, and I need to have a positive number. thanks -tiproggrammer

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: 0=xx(squared)-50x+175 ????? I tried to use the quadratic formula, but it became a imaginary number, and I need to have a positive number. thanks -tiproggrammer      Log On


   

Question 103033: 0=xx(squared)-50x+175 ????? I tried to use the quadratic formula, but it became a imaginary number, and I need to have a positive number.
thanks
-tiproggrammer
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
0=xx(squared)-50x+175
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x^2-50x+175=0
x = [50 +- sqrt(2500-4*175)]/2
x = [50 +- sqrt1800)]/2
x = [50 +- 30sqrt2]/2
x = 25 + 15sqrt2 or x = 25 - 15sqrt2
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Cheers,
Stan H.