20x-25/50x^2+25x-70

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Solution for 20x-25/50x^2+25x-70 equation: 


x in (-oo:+oo)

20*x-((25/50)*x^2)+25*x-70 = 0

(-1/2)*x^2+20*x+25*x-70 = 0

45*x-1/2*x^2-70 = 0

DELTA = 45^2-(-70*(-1/2)*4)

DELTA = 1885

DELTA > 0

x = (1885^(1/2)-45)/(-1/2*2) or x = (-1885^(1/2)-45)/(-1/2*2)

x = 45-1885^(1/2) or x = 1885^(1/2)+45

x in { 45-1885^(1/2), 1885^(1/2)+45 }

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