x^2/900-30x

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Solution for x^2/900-30x equation: 


x in (-oo:+oo)

(x^2)/900-(30*x) = 0

(x^2)/900-30*x = 0

1/900*x^2-30*x = 0

DELTA = (-30)^2-(0*1/900*4)

DELTA = 900

DELTA > 0

x = (900^(1/2)+30)/(1/900*2) or x = (30-900^(1/2))/(1/900*2)

x = 27000 or x = 0

x in { 0, 27000 }

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