1/10(x^2)-1/5(x)=1

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Solution for 1/10(x^2)-1/5(x)=1 equation: 


x in (-oo:+oo)

(1/10)*x^2-((1/5)*x) = 1 // - 1

(1/10)*x^2-((1/5)*x)-1 = 0

(1/10)*x^2+(-1/5)*x-1 = 0

1/10*x^2-1/5*x-1 = 0

DELTA = (-1/5)^2-(-1*1/10*4)

DELTA = 11/25

DELTA > 0

x = ((11/25)^(1/2)+1/5)/(1/10*2) or x = (1/5-(11/25)^(1/2))/(1/10*2)

x = 5*((11/25)^(1/2)+1/5) or x = 5*(1/5-(11/25)^(1/2))

x in { 5*(1/5-(11/25)^(1/2)), 5*((11/25)^(1/2)+1/5) }

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