SOLUTION: 25x2+30x+9=-30x please help thankyou

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equation Customizable Word Problems -> SOLUTION: 25x2+30x+9=-30x please help thankyou      Log On


   

Question 172747: 25x2+30x+9=-30x please help thankyou
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
25x2+30x+9=-30x
25x^2+30x+30x+9=0
25x^2+60x+9=0
Using the quadratic equation: x=%28-b%2B-sqrt%28b%5E2-4%2Aa%2Ac%29%29%2F%282%2Aa%29 we get:
x=(-60+-sqrt[60^2-4*25*9])/2*25
x=(-60+-sqrt[3,600-900])/50
x=(-60+-sqrt2,700)/50
x=(-60+-51.96)/50
x=(-60+51.96)/50
x=-8.038/50
x=-.16 ans.
x=(-60-51.96)/50
x=(-111.96)/50
x=-2.239 ans.