X-3/4X2-15X+0+9

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Solution for X-3/4X2-15X+0+9 equation: 


X in (-oo:+oo)

X-((3/4)*X^2)-(15*X)+0+9 = 0

(-3/4)*X^2+X-15*X+9 = 0

9-3/4*X^2-14*X = 0

DELTA = (-14)^2-(-3/4*4*9)

DELTA = 223

DELTA > 0

X = (223^(1/2)+14)/(-3/4*2) or X = (14-223^(1/2))/(-3/4*2)

X = -2/3*(223^(1/2)+14) or X = -2/3*(14-223^(1/2))

X in { -2/3*(223^(1/2)+14), -2/3*(14-223^(1/2)) }

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