u^2+2u-15/3u-27

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Solution for u^2+2u-15/3u-27 equation: 


u in (-oo:+oo)

u^2+2*u-((15/3)*u)-27 = 0

u^2+2*u-5*u-27 = 0

u^2-3*u-27 = 0

DELTA = (-3)^2-(-27*1*4)

DELTA = 117

DELTA > 0

u = (117^(1/2)+3)/(1*2) or u = (3-117^(1/2))/(1*2)

u = (3*13^(1/2)+3)/2 or u = (3-3*13^(1/2))/2

u in { (3-3*13^(1/2))/2, (3*13^(1/2)+3)/2 }

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